The probability that the mean of a sample of 36 people is less than 13 is approximately 0.744.
What do you mean by cumulative probability?Cumulative probability refers to the sum of probabilities of all possible outcomes that are less than or equal to a specific value. It is used to calculate the probability of observing a value less than or equal to a given value. For example, if we have a cumulative probability distribution function (CDF), we can use it to find the probability that a random variable is less than or equal to a particular value. The cumulative probability is the area under the probability density function (PDF) to the left of the specified value. It provides a complete picture of the distribution of a random variable, and it can also be used to calculate probabilities for ranges of values.
To find the probability that the mean of a sample of 36 people is less than 13, we need to calculate the z-score associated with the value of 13, and then look up the corresponding cumulative probability in a standard normal table.
The z-score is given by:
z = (13 - 12) / (3.2 / √(36)) = 0.625
Using a standard normal table, we can find that the cumulative probability associated with a z-score of 0.625 is approximately 0.744.
So, the probability that the mean of a sample of 36 people is less than 13 is approximately 0.744.
For the second part of the question, the probability that the mean of a sample of 36 people is greater than 13 can be calculated as 1 minus the cumulative probability associated with a z-score of 0.625, which is approximately 1 - 0.744 = 0.256.
For the last part of the question, the probability that the mean of a sample of 36 people is between 11 and 12 can be calculated by subtracting the cumulative probabilities associated with the z-scores corresponding to 11 and 12 from a standard normal table.
z1 = (11 - 12) / (3.2 / √(36)) = -0.938
z2 = (12 - 12) / (3.2 / √(36)) = 0
Using a standard normal table, we find that the cumulative probability associated with z1 = -0.938 is approximately 0.172, and the cumulative probability associated with z2 = 0 is 0.5.
So, the probability that the mean of a sample of 36 people is between 11 and 12 is approximately 0.5 - 0.172 = 0.328.
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The pavement at the new shopping mall is being laid. Which transformation is applied from brick A to brick B?
A. reflection
B. rotation
C. dilation
D. translation
Since the pavement at the new shopping mall is being laid, a transformation that is applied from brick A to brick B include the following: D. translation.
What is a transformation?In Mathematics, a transformation can be defined as the movement of a point from its original (actual) position to a final (new) location. This ultimately implies that, when an object (pre-image) is transformed, all of its points would be transformed as well to form a new image such as the following:
ReflectionTranslationRotationDilationWhat is a translation?In Mathematics, a translation can be defined as a type of transformation which moves every point of the object in the same direction, as well as for the same distance.
In conclusion, a translation was applied to both brick A and brick B.
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Find equation of the line shown
The equation of the line is y = x + 6
How to detemrine the equatiin of the lineFrom the question, we have the following parameters that can be used in our computation:
The graph
On the graph, we have the following highlights
The graph intersect the y-axis at y = 6
This means that the intercept c is 6
Also, as x changes by 1, the y values changes by 1
This mean sthat the slope is 1
So, we have
y = mx + c
This gives
y = x + 6
Hence, the equation is y = x + 6
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The linear equation on the graph can be written as:
y = (3/2)*x + 6
How to find the equation in the graph?A general linear equation can be written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
If the line passes through two points (x₁, y₁), then the slope will be:
a = (y₂ - y₁)/(x₂ - x₁)
In this case we can see the points (0, 6) (so the y-intercept is b = 6) and (4, 10)
Then the slope will be:
a = (10 - 6)/(4 - 0) = 6/4 = 3/2
Then the linaer equation is:
y = (3/2)*x + 6
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A store specializing in mountain bikes is to open in one of 2 miles if the first mall selected the store anticipates a yearly profit of $300,000 if successful and yearly loss of $100,000 otherwise. The probability of success is 1/2 if the second most selected it is estimated that the yearly profit will be $200,000 if successful otherwise the annual loss will be $60,000. The probability of success at the second mall is 3/4 which mall should be chosen in order to maximize the expected profit?
The probability of success at the second mall is 3/4 which mall should be chosen in order to maximize the expected profit $135,000.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
First mall:
Profit if successful = $300,000
Loss if otherwise = $100,000
Probability of success = 1/2
Second mall:
Profit if successful = $200,000
Loss if otherwise = $60,000
Probability of success = 3/4
If probability of profit 'P(profit)' = 3/4
Then,
Probability of loss P(loss) = 1 - P(profit)
P(loss) = 1 - 3/4 = 1/4
Expected profit:
= [P(profit) x profit] + [P(loss) x loss])
= (0.75 x $200,000) + (0.25 x (-$60,000))
= 150,000 - 15000
= $135,000
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simplify b^n-2*b^n-3
The simplified form of the exponential expression [tex]b^{n- 2}\times{b^{n-3} = b^{2n - 5}[/tex].
What are some rules of exponents?Some common rules of exponents are
xᵃ×xᵇ = xᵃ⁺ᵇ.
xᵃ/xᵇ = xᵃ⁻ᵇ.
Addition and subtraction of exponents are only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.
Given, An exponential expression [tex]b^{n- 2}\times{b^{n-3}[/tex].
We know, Same base multiplication is exponent addition.
Therefore,
[tex]b^{n- 2}\times{b^{n-3} = b^{n - 2 + n - 3}[/tex].
[tex]b^{n- 2}\times{b^{n-3} = b^{2n - 5}[/tex].
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At an educational district's office, three types of employee wages are incorporated into the budget specialists, managers, and directors. Employees of each type have the same salary across districts. One district employs five specialists, two managers, and a director with total annual budgeted salaries of $550,000
. Another district employs six specialists three managers, and two directors with an annual salary budget of $777,000
A third district has eight specialists, no managers, and two directors with an annual salary budget of $676,000
The salary of each of specialist, manager and director are $62,000, $75,000 and $90,000.
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Linear equations may include one or more variables.
Let x, y and z be the salary of specialist, manager and director respectively.
From the given information, we have three linear equations.
5x + 2y + z = 550,000
6x + 3y + 2z = 777,000
8x + 0y + 2z = 676,000
From the third equation,
2z = 676,000 - 8x
z = 338,000 - 4x
Substituting the value of z in the first equation,
5x + 2y + 338,000 - 4x = 550,000
x + 2y = 212,000
2y = 212,000 - x
y = 106,000 - (1/2) x
Substituting z = 338,000 - 4x and y = 106,000 - (1/2) x in the second equation 6x + 3y + 2z = 777,000,
6x + 3(106,000 - (1/2) x) + 2(338,000 - 4x) = 777,000
6x + 318,000 - (3/2)x + 676,000 - 8x = 777,000
(6x - 3/2 x - 8x) + (318,000 + 676,000) = 777,000
-(7/2) x = -217,000
x = 62,000
y = 106,000 - (1/2) x = 75,000
z = 338,000 - 4x = 90,000
Hence the salary of each specialist is $62,000, each manager is $75,000 and each director is $90,000.
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Please Help ASAP - 100pts + Brainliest if Correct!
The value of y when x = 28 is given as follows:
y = 0.5.
What is a proportional relationship?A direct proportional relationship is defined as follows:
y = kx.
In which k is the constant of proportionality.
An inverse proportional relationship is defined as follows:
y = k/x.
When x = 7, y = 2, hence the constant k is obtained as follows:
2 = k/7
k = 14.
Hence the equation is:
y = 14/x.
When x = 28, the value of y is obtained as follows:
y = 14/28
y = 0.5.
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Mr. Leake is installing a goldfish pond in his backyard. Goldfish cost $3.45 each. If he waits till next week they will cost $2.85. What is the percent change from this week till next? (round to the nearest whole percent)
PLEASE I WILL GIVE BRAINLEAST PLUS 50 POINTS
Answer:
Step-by-step explanation:
As an example, let's say I have a pond 7 feet long, 6.5 feet wide, and 3 feet deep. That gives me approximately 1,000 gallons of water. The average recommended gallons per inch of fish is 10. To calculate how many inches of fish I can fit in my pond I would divide 1,000 by 10: 1,000/10 = 100.
I know it is not the answer but I hope this helps you.
Answer this please. Explain your reasoning
Answer:
a. Point C is at (8,8)
b. See image/expl
c. AngleABC = 140°
Step-by-step explanation:
You can just count squares to find the slope of AD. To find points along AD, go
UP1 and OVER4
UP1 and OVER4 is the slope 1/4.
Start from B and go
UP1 and OVER4.
Parallel lines have the same slope. Perpendicular lines have slopes with opposite sign and "flipped". To make CD perpendicular to AD the slope should be -4/1 or 4/-1 is the same thing. To find C go from D
UP4 and BACK1
this is the slope 4/-1
1/4 and 4/-1 are negative reciprocals (opposite sign and flipped over) so the lines will be perpendicular.
You cab use this explanation for part b. Or you the slope calculations using the coordinates. See image.
part c, see image.
What is x in this equation
Answer:
x = 3 rounded to the nearest whole number (actually 2.735)
Step-by-step explanation:
The triangle formed by the sides of length 7x, 12x and 32 form a right triangle with the side of length 32 as they hypotenuse
By the Pythagorean theorem
c² = a² + b² where c = hypotenuse, a and b being the other two sides
Plugging in values we get
38² = (7x)² + (12x)²
1,444 = 49x² + 144x² = 193x²
Switching sides:
193x² = 1444
x² = 1444/193 = 7.48
x = √7.48= 2.735 = 3 rounded to the nearest whole number
What is the sum of 5 of the interior angles of a regular octagon?
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The sum of 5 of the interior angles of a regular octagon is 675°.
What is interior angle?Angles inside a polygon are referred to as interior angles. A triangle, for instance, has three internal angles. Interior angles are sometimes defined as "angles confined in the interior area of two parallel lines when they are crossed by a transversal."
A regular octagon has equal interior angles.
And one interior angle is equal to 135°.
The sum of 5 of the interior angles of a regular octagon,
= 135 x 5
= 675°
Therefore, the sum is 675°.
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5 divided by 206 Using long division
Solution is in the attachment!!
find the least common denominator for each pair of fractions
The least common denominator for each pair of fractions is as follows:
33.) = 6
33.) = 634.) = 7
33.) = 634.) = 735.) = 30
What is least common denominator ?The least common denominator is defined as the lowest number that can divide a given set of numbers.
For ½ and ⅓, the leats common denominator would be 2×3 = 6For 4/7 and 3/2828= 2×2×7
7 = 7
The least common denominator would be 7
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A catapult launches a pumpkin from the base of a hill. The
hill follows an incline with the height in meters, y, in terms
of horizontal distance in meters, x, given by the equation
y=0.9x. The height of the pumpkin, as it is launched up-
hill, is given by the function y = -0.1x² +4.9x¸
What is the height, in meters, where the pumpkin lands on
the hill?
A catapult launches a pumpkin from the base of a hill. The hill follows an incline with the height in meters, y, in terms of horizontal distance in meters, x, given by the equation y=0.9x. 40m is the height, where the pumpkin lands on the hill.
What is horizontal distance?The term "horizontal distance" refers to the separation between two places measured with a slope of 0%. Vertical distance is the distance following the direction of gravity, while horizontal distance is the distance along the ground surface. The distance between an observer and a building represents as that of an example of horizontal distance, and the structure's height serves as an illustration of vertical distance. A projectile's range is the horizontal distance it covers. Horizontal refers to something that is parallel to it. Anything that forms a 90-degree angle (right angle) with the horizontal or the horizon is referred to as vertical since it is the opposite of the horizontal. The line that spans from left to right is therefore considered to be horizontal.
Given that,
The hill follows an incline with the height in meters y,
in terms of horizontal distance in meters x,
The given equation becomes: y = 0.9x
The height of the pumpkin, as it is launched up hill, is given by the function:
y = -0.1x² + 4.9x
now, finding point of intersection, we get:
0.9x = -0.1x² + 4.9x [as y = 0.9x]
or, 0.1x² - 4x = 0
or, x (0.1x - 4) = 0
or, x = 0 (this is not possible)
and 0.1x = 4
or, x = 40
40 is the height, in meters, where the pumpkin lands on the hill.
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how do u count by 5's.
its 5,10,15,20,25,30,45,50,55,60,65,70,75,80,85,90,95,100!!!!
I hope this helps! BYEE!!!
Counting of numbers by 5's end with 0, 5, 0, 5, 0, .....
What is Counting?Counting in mathematics is defined as the process of finding the number of objects in a set which is finite.
Counting numbers are the natural numbers.
The question is how to count by 5's.
In order to count by 5's, we have to add 5 to each of the preceding number to get the next number.
So the pattern will be,
5, 10, 15, 20, 25, 30, 35, ........
So the numbers end either in 0 or 5.
Hence the pattern of counting by 5's are the numbers which ends in either 0 or 5.
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In 2018 the Social Security Percent was
6.2% up to the Social Security Maximum
Taxable Income of $128,400.00. Joe's
annual salary that year was $256,750.00.
How much did Joe not have to pay because
his salary was over the maximum?
The amount of money that Joe needs to pay would be = $15,918.50
How to calculate the total payment amount?In the year 2018, the percentage of social security = 6.2%
Joe's taxable income= $128,400.00
The annual salary of Joe = $256,750.00
The amount of money that joe should not pay is 6.2% of $256,750.00.
That is;
= 6.2/100 × 256,750.00
= 1591850/100
= $15,918.50
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What is the sum of the series sum from n equals 1 to infinity of negative 3 times three eighths to the n power question mark
negative nine fifths
nine fifths
negative nine eighths
nine elevenths
The solution is Option A.
The sum of the infinite geometric progression is S = -( 9/5 )
What is Geometric Progression?A geometric progression is a sequence in which each term is derived by multiplying or dividing the preceding term by a fixed number called the common ratio.
The nth term of a GP is aₙ = arⁿ⁻¹
The general form of a GP is a, ar, ar2, ar3 and so on
Sum of first n terms of a GP is Sₙ = a(rⁿ-1) / ( r - 1 )
Given data ,
Let the sum of the geometric progression be represented as S
Now , the equation will be
∑ n = 1 to ∝ ( -3 ( 3/8 )ⁿ ) be equation (1)
The sum of the infinite GP is S = a / ( 1 - r ) , where r is the common ratio
Substituting the values in the equation , we get
when n = 1
a₁ = -3 ( 3/8 )
a₁ = -9/8
when n = 2
a₂ = -3 ( 3/8 )²
a₂ = -27/64
So , the common ratio r = a₂ / a₁
The common ratio r = 3/8
Substituting the values in the equation , we get
The sum of the infinite GP is S = a / ( 1 - r )
The sum of the infinite GP is S = ( -9/8 ) / ( 1 - 3/8 )
The sum of the infinite GP is S = ( -9/8 ) / ( 5/8 )
The sum of the infinite GP is S = - ( 9/5 )
Hence , the sum of GP is - ( 9/5 )
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Find the possible formula for the linear function h(x) if h (-30) = 90 and h (20) = -160.
H(x) =
Answer:
The possible formula for the linear function h(x) is h(x) = -7x + 190. This can be determined by using the information from numerade.com, which states that the formula for a linear function is y = mx + b. Applying this formula to the given values of h(-30) = 90 and h(20) = -160 gives a formula of h(x) = -7x + 190.
Step-by-step explanation:
The measures of the exterior angles of a heptagon are
x°, 2x°, 3x°, 4x°, 5x°, 7x°, and 8x°.
Find the measure of the largest exterior angle.
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The measure of the largest exterior angle is 96°.
What is heptagon?Heptagon is a two-dimensional shape with seven angles, seven vertices, and seven edges. This seven-sided polygon “heptagon” is made up of two words ‘Hepta’ and ‘Gonia’, which means seven angles. Another name given to it is septagon or 7-gon.
In heptagon, the sum of the interior angles is equal to 900 degrees. The sum of exterior angles of a heptagon is 360 degrees.
Here, x°+2x°+3x°+4x°+5x°+7x°+8x°=360°
30x°=360°
x°=12°
So, 8x°= 96°
Therefore, the measure of the largest exterior angle is 96°.
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Question from Planning and Project management course.
Mr. Hummer works on the task for 3 hours, Mr.Cold works on the task 9 hours, and Mr. Bean works 8 hours on the task. Calculate duration of the task in days? Working day has 8 hours. The task is fixed work. What is task duration if Mr. Bean gets sick?
The duration of the task is 2.5 days
The task duration if Mr. Bean gets sick is 1.5 days
What is an equation?An equation is an expression showing two or more numbers and variables linked together by a mathematical operation. Types of equations are linear, quadratic, cubic and so on depending on the degree of the variable.
Mr. Hummer works on the task for 3 hours, Mr. Cold works on the task 9 hours, and Mr. Bean works 8 hours on the task
Total time spent on task = 3 hours + 9 hours + 8 hours = 20 hours
Working day has 8 hours, therefore:
1 working day = 8 hours
20 hours = 20 hours * 1 working day per 8 hour = 2.5 days
If Mr. Bean is sick:
Total time spent on task = 3 hours + 9 hours = 12 hours
12 hours = 12 hours * 1 working day per 8 hour = 1.5 days
The task duration if Mr. Bean gets sick is 1.5 days
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The volume of a cone with radius r and height h is given by the 1 expression 3 -Tr^2h. Write an expression for the volume of a cone in terms of the height h if the radius is equal to one half the height.
Answer:If the radius of the cone is equal to one half the height, we can write the radius as r = h/2. Substituting this expression into the formula for the volume of a cone, we get:
V = 1/3 * (h/2)^2 * h = 1/3 * h^3 / 4
So, the volume of a cone in terms of the height, if the radius is equal to one half the height, is V = 1/3 * h^3 / 4.
Step-by-step explanation:
If the radius of the cone is equal to one half the height, we can write the radius as r = h/2. Substituting this expression into the formula for the volume of a cone, we get:
V = 1/3 * (h/2)^2 * h = 1/3 * h^3 / 4
So, the volume of a cone in terms of the height, if the radius is equal to one half the height, is V = 1/3 * h^3 / 4.
At the market,grapes cost 0.85 per pound.Clarissa buys grapes and pays a total of 2.55.How many pounds of grapes does she buy.
3 pounds of grapes she buy grapes in the market.
What is Division?A division is a process of splitting a specific amount into equal parts.
Given that each pound of grapes cost 0.85.
Clarissa buys grapes and pays a total of 2.55.
We have to find the number of pounds of grapes does she buy.
To find this we have to divide 2.55 by 0.85.
Two point five five by zero point eight five.
2.55/0.85
3 pounds of grapes.
Hence, 3 pounds of grapes she buy grapes in the market.
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alexia has 22$ to spend at the fair. the entrance fee to the fair is 10$ and the rides cost 3$ each. how many rides can alexia go on to spend exactly 22$
Answer: 4
Step-by-step explanation:
Alexia has 22$ total:
Therefore, after taking away the 10$ dollar admission fee, she has 12$ left.
12$ dolars divided by 3$ dollars per ride equal 4 rides.
The answer is 4 rides to spend exactly 22$
Gareth has.
total value
Liliana spends $4.00 on 2 boxes of popcorn and 2 drinks. Nadette spends $5.25 on 2 boxes of popcorn and 3 drinks. The prices of the popcorn and drinks can be determined by solving the system of equations shown.
(2p + 2d = 4.00
2p + 3d = 5.25
1. What variable will you eliminate first? How?
The cost of each popcorn is $0.75 while the cost of each drink is $1.25
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on
Let p represent the number of popcorn and d represent the number of drinks that Liliana bought.
Liliana spends $4.00 on 2 boxes of popcorn and 2 drinks, hence:
2p + 2d = 4 (1)
Nadette spends $5.25 on 2 boxes of popcorn and 3 drinks, hence:
2p + 3d = 5.25 (2)
To solve using elimination method, subtract equation 1 from 2, hence:
d = $1.25
substitute the value of d in equation 1 to get p:
2p + 2(1.25) = 4
p = $0.75
The value of p and d are $0.75 and $1.25 respectively
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Robert and Tony love to read. Robert reads 30 pages the first day and 20 pages each day after that. Tony reads 40 pages the first day and 15 pages each day after that. Which graph represents the total number of pages each has read after each day?
The solution graph is given in the attached image.
The solution is x = 2 and y = 70.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given:
Robert and Tony love to read.
Robert reads 30 pages the first day and 20 pages each day after that.
Tony reads 40 pages the first day and 15 pages each day after that.
We have a system of equations,
y = 20x + 30
y = 15x + 40
Subtracting the equations, we get,
5x = 10
x = 2
And y = 70.
And the graph is given in the attached image.
Therefore, the solution is x = 2 and y = 70.
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The number of eggs in the refrigerator e decreased by 3 equals 18. enter an equation to represent the situation
The situation can be described by the equation x - 3 = 13 = x = 13 + 3 = x = 16.
How Do Equations Work?A mathematical phrase with two equal sides and an equal sign is called an equation. An example of an equation is 4 + 6 = 10. 4 + 6 can be seen on the equal sign's left side, and 10 can be seen on the equal sign's right side. A relationship between two terms on either side of an equal sign is represented by a simple equation. The four mathematical operations of addition, subtraction, multiplication, and division are also used in simple equations, either singly or in combination.
no of egg is decreased e= x - 3
equation to represent the situation
x - 3 = 13
x = 13 + 3
x = 16
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what does this equal
Answer: 3 1/2
Step-by-step explanation:
Since positive and a negative make a negative the product would be a negative. Now we multiply 2/1 (because is the same as 2) times - 7/4, which gives us - 14/4. -14/4 = 3 1/2. Have a nice day ;)
Solve for X round to the nearest tenth. Trigonometry For 2,3,5,6,9
The value of x are:
2) x = 18.87
3) x = 26.68
5) x = 35.52
6) x = 13.75
9) x = 3.69
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = 1/ cosec x
Cos x = 1/ sec x
Tan x = 1/ cot x or sin x / cos x
Cot x = cos x / sin x
We have,
2)
Tan 48 = x / 17
1.11 = x / 17
x = 17 x 1.11
x = 18.87
3)
Sin 67 = x / 29
0.92 = x / 29
x = 0.92 x 29
x = 26.68
5)
Cos 16 = x / 37
0.96 = x / 37
x = 0.96 x 37
x = 35.52
6)
Tan 58 = 22/x
1.6 = 22 / x
x = 22/1.6
x = 13.75
9)
Sin 24 = x / 9
0.41 = x / 9
x = 0.41 x 9
x = 3.69
Thus,
The value of x is given above.
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The movie Brayden and his friends went to see started at 2:05 P.M. and ended at
3:40 P.M. Use the number line to find how long the movie was.
Start
End
help pls .............................
a) The measure of angle 3 is given as follows: m < 3 = 3x + 105.
b) The value of x is given as follows: x = 10.
c) It is not possible for a triangle to have side lengths 5, 8 and 14, as the sum of the lengths of the two smaller sides would be less than the length of the larger side.
How to obtain the angle measures?The measure of angle 1 is given as follows:
m<1 = 3x + 15.
As the sum of the measures of the internal angles of a triangle is of 180º, and there is a right triangle, we have that angles 1 and 2 are complementary, hence:
m < 1 + m < 2 = 90
3x + 15 + m < 2 = 90
m < 2 = 75 - 3x.
An angle is always supplementary with it's exterior angle, hence the measure of angle 3 is obtained as follows:
m < 2 + m < 3 = 180
75 - 3x + m < 3 = 180
m < 3 = 180 - 75 + 3x
m < 3 = 3x + 105.
For an isosceles right triangle, the two non-right angles measure 45º, hence the value of x is obtained as follows:
3x + 15 = 45
3x = 30
x = 30/3
x = 10.
More can be learned about angle measures at https://brainly.com/question/25716982
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Sally buys 5 dolls and 1 purse for $21.
Donna buys 7 dolls and 1  purse for 27$
Answer:
1. The unit price for a doll is three dollars. The unit price for a purse is six dollars.
2. One doll costs three. One purse costs six.
3. Polly spends $24 on the 2 dolls and 3 purses.
Step-by-step explanation:
Doing some calculations, 1 doll costs three dollars and 1 purse costs six dollars.
5 x 3 + 6 = 21
7 x 3 + 1 = 27
If Polly buys 2 dolls and 3 purses, that means she spends six dollars on the dolls and eighteen dollars on the purses.
(2 x 3) + (3 x 6) = $24
Polly spends $24 on 2 dolls and 3 purses.
Hope This Helps!