Answer:
cost of television + cost of DvD =1140
cost of television =3×cost of DVD
3×cost of DVD+cost of DVD =1140
4×cost of DVD =1140
cost of DVD =285$
5) Imani and lea are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Imani sold 2 rolls of plain wrapping paper and 11 rolls of holiday wrapping paper for a total of $208. Lea sold 11 rolls of plain wrapping paper and 9 rolls of holiday wrapping paper for a total of $320. What is the cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper?
Answer: Let's represent the cost of one roll of plain wrapping paper as x, and the cost of one roll of holiday wrapping paper as y. We can write two equations based on the information given:
2x + 11y = 208
11x + 9y = 320
We can use these equations to find the values of x and y. Solving the first equation for y:
y = (208 - 2x) / 11
We can substitute this expression for y into the second equation to eliminate y:
11x + 9((208 - 2x) / 11) = 320
11x + 208 - 18x / 11 = 320
11x - 18x / 11 = 320 - 208
-7x / 11 = 112 / 11
-7x = 112
x = -16
So one roll of plain wrapping paper costs -16 dollars, which is not possible. This means there is no solution for this system of equations, and therefore the problem has no solution.
Step-by-step explanation:
The point (10, 10) is the midpoint of C and D. Given that the coordinates of C are (15, s) and the coordinates of D are (t, 3), solve for the values of the variables s and t. Show your work (HELP ME PLEASE)
Answer: T= 5 and s =17
Step-by-step explanation: Use the midpoint formula
Solve for T
^xm=^xC+^xD/2
15+t/2=10
15+t=20
Solve for S
^ym=^yC+^yD/2
s+3/2=10
s+3=20
What angle in degrees does the guy wire make with the ground?
Answer:
45? I'm not 1000% sure tog
Step-by-step explanation:
Triangle rst is congruent to triangle wxy. If the area of triangle wxy is 20 square inches, then the area of triangle rst is _____. 10 in 2 40 in 2 80 in 2 20 in 2.
Triangle rst is congruent to triangle wxy. If the area of triangle wxy is 20 square inches, then the area of triangle rst is 20 square inches.
When two triangles are congruent, it means that they are exactly the same in every aspect, including their size and shape. This means that their corresponding sides and angles are equal in length and measure, respectively.
In terms of area, if two triangles have the same shape and size, then they will have the same area. This is because the area of a triangle is determined by the length of its sides and the angles between them, and if two triangles are congruent, then their sides and angles are equal.
Therefore, if the area of triangle WXY is 20 square inches, then the area of triangle RST must also be 20 square inches. This is because triangle RST has the same size and shape as triangle WXY, and therefore must have the same area.
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Arial says that, for any pair of linear realtions, if the coefficients of the y-terms are equal the coefficients of the x-terms are equal, the graphs of the two lines will be parallel. Give an example for which Arial's claim is true.
Arial's claim that the graphs of the two lines will be parallel if the coefficients are equal.
How to prove the claim ?If the coefficients of the y-terms are equal and the coefficients of the x-terms are equal, the two lines represented by the equations will be parallel. Parallel lines have the same slope and do not intersect, meaning that their graphs will never cross.
To prove Arial's claim, here is an example:
y = 2x + 1 and y = 2x + 3
The coefficients of the y-terms are equal in both equations, since they both have a coefficient of 2 in front of the x-term. The coefficients of the x - terms are also equal, since they both have a coefficient of 1 in front of the constant term thereby making them parallel.
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Cory and Veronica each multiplied one/2×5/2 Cory got six/ four and Veronica Cook got five over four which student found the correct answer explain
Answer:
Veronica is correct
Step-by-step explanation:
1/2 x 5/2 = 5/4
1/2 + 5/2 = 6/4
Find x. Round your answer to the nearest tenth of a degree.
Answer:
x = 64.6 degrees
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
cos theta = adjacent side / hypotenuse
cos x = 3/7
Taking the inverse cos of each side
x = cos^-1 ( 3/7)
x = 64.6 degrees
Determine the number of 4g cremora sachets that will make 1kg cremora box.
A total of 250 packets of 4g cremora will make 1kg cremora box.
What is function?A function is a elation between a dependent and independent variable.
Given are 4g cremora sachets.
We can write the total number of cremora sachets that will make 1kg cremora box as -
{n} = 1000/4
{n} = 250
Therefore, a total of 250 packets of 4g cremora will make 1kg cremora box.
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I NEED HELP ON THIS ASAP!!!
The system of linear inequalities (x, y) has a solution that is (-1, 2)
What is the system of linear inequalityA system of linear inequalities is identical to a system of linear equations, but instead of equations, it is made up of inequalities. Many constraint scenarios are modeled using sets of linear inequalities.
We may determine the values of x and y in the above problem as;
x + y > 1 ...eq(i)
-x + y <= 3 ...eq(ii)
Solving both inequalities;
The solution is;
1 - x < y ≤ 3 + x
This is simple to plot on a graph, and the intersection will provide the answer;
The graph below shows the inequality's (x, y) solution, which is (-1, 2)
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What is the ratio of dL to L?
Answer:
Step-by-step explanation:
The ratio of a change in a quantity (dL) to the original quantity (L) is given by:
dL/L
This ratio can also be expressed as a percentage change, which is calculated by multiplying the ratio by 100:
(dL/L) * 100 = percent change
In general, the ratio of dL/L represents the fractional change in the quantity L and is used to quantify the effect of small changes in a system or process. For example, if L is the length of an object and dL is a small change in length, then dL/L represents the fractional change in length due to this change.
What are the ACT math formulas that you absolutely have to know?
The ACT Math section tests a wide range of mathematical concepts and skills, so there are many formulas and concepts that you should be familiar with.
Here are some of the most important ACT math formulas that you should know:
1. Basic operations: addition, subtraction, multiplication, and division.
2. Exponents and roots: [tex]a^n[/tex] means a multiplied by itself n times; the nth root of a is the number that, when raised to the nth power, gives a.
3. Order of operations: parentheses, exponents, multiplication/division (from left to right), and addition/subtraction (from left to right).
4. Fractions: converting between fractions, decimals, and percents; adding, subtracting, multiplying, and dividing fractions.
5. Algebra: solving equations and inequalities; simplifying algebraic expressions; factoring quadratics; understanding linear and quadratic functions.
6. Geometry: properties of lines, angles, and polygons; Pythagorean theorem; trigonometric functions; volume and surface area of 3D shapes.
7. Probability and statistics: calculating probabilities; mean, median, and mode; standard deviation.
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Stefan is decorating a rectangular cake. He will put blue icing on the top three-fourths of the cake, as shown in this model. He will put red dots on the left one-fifth of the cake, as shown in this model. What fraction of the cake will have both blue icing and red dots? .
The circumfrence is 26cm what is the diameter to 1dp
Answer:
The diameter is 8.3cm.
Step-by-step explanation:
The circumference is the distance all the way around a circle. To find circumference, multiply pi times diameter:
C = pi • d
Fill in given circumference.
26 = pi • d
Divide both sides by pi (you should use a calculator) in this question it doesn't happen to matter if you use a pi button or 3.14 for pi.
26/3.14 = d
8.276057 = d if you use the pi button.
or,
8.28025 = d if you use 3.14
Both of these round to 8.3, since the question asked for one decimal place (1dp)
The diameter is 8.3cm.
which expression is equivalent to 3.5b + 4.5 + 0.5b - 0.5 - 1.5b
[tex]3.5b + 4.5 + 0.5b - 0.5 - 1.5b[/tex]
Combine Like Terms:
[tex](3.5b+0.5b-1.5b)+(4.5-0.5)[/tex]
[tex]\boxed{2.5b+4}[/tex]
A human body that is performing light work generates about 700.0 BTUs of body heat per hour. If a room that is 12.0 x 13.0 x 11.0 is being painted by 3 people, how many BTUs per cubic foot do they produce in 2 hours
2.45 BTUs/ft³ is produced in 2 hours.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.It is given that a human body that is performing light work generates about 700 BTUs.
Total heat generated by 3 peoples in 1 hour -
Q{heat} = 3 x 700
Q{heat} = 2100 BTUs/hr
For the two hours -
Q{T} = 2100 x 2
Q{T} = 4200 BTUs ... { 1 }
Volume of the room -
V{R} = 12 x 13 x 11
V{R} = 1716 ft³ ... { 2 }
So, we can write as -
BTUs per cubic foot produced in 2 hours is -
{r} = Q{T}/V{R}
{r} = 4200/1716
{r} = 2.45 ft³
Therefore, 2.45 BTUs/ft³ is produced in 2 hours.
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find the value for x that makes the equation true.
4x +2x + 12 =3(3x + 6)
Answer :
x = -2
-8 + -4 + 12 = 3(-6 + 6)
Im not sure
1) A bakery used one-sixth of a bag of chocolate chips to make 8 batches of cookies. How
much of the bag did they use for each batch?
Answer:
Step-by-step explanation:
1/6 ÷ 8
1/6 × 1/8
1/48
for each batch
Solve for y. 2x - 1/4y = 1
Quadrilateral MNOP is similar to quadrilateral QRST. Find the measure of side RS.
Figures are not drawn to scale.
The measure of side RS is 7.6 units .
Similar quadrilaterals:
A quadrilateral's interior angles add up to 360 degrees. Two quadrilaterals are said to be identical when two adjacent sides have the same ratio and all three matching angles are equal (the fourth angle automatically becomes equal because the internal angle sum equals 360 degrees).
The corresponding angles of similar quadrilaterals should be equal in accordance with the similarity of quadrilaterals. Since we know that every angle in a square is 90 degrees, every matching angle in any two squares will be the same.
In the given question ,
Quadrilateral MNOP is similar to quadrilateral QRST .
[tex]\frac{ON}{NM} =\frac{RS}{RQ} \\\\\frac{2}{4} = \frac{RS}{15.2} \\\\\frac{1}{2} =\frac{RS}{15.2} \\\\RS=\frac{15.2}{2} \\\\RS=7.6units[/tex]
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A, B, C and D form the vertices of a parallelogram.
AD = 10.1cm, AB = 15.9cm and
∠
BAD = 61°.
Find the area of the parallelogram. Round to 1 DP
SMENT UNIT 22 SY23 / SECTION 1/1 OFS /
Kane Laboratories is studying the impact of various enriched growth mediums on different bacteria. They
are currently studying the impact of placing Bacillus Megaterium into a culture of sucrose salts. The table
below shows the growth rate of the bacteria during the growth phase. The generation time for Bacillus
Megaterium is 25 minutes in this culture.
Generation
Number, n
Bacteria
Population, P
B. P (n) = 12+2n
OC. P (n) = 12 (n+1)
OD. P (n) = 12-4-1
0
12
1
24
2
3
48 96
4
20%
192
Which function models the growth of the Bacillus Megaterium over each generation?
O A P (n) = 12-2
The function that models the growth of the Bacillus Megaterium over each generation is B. P (n) = 12 + 2n.
1, 6, 36, 216, 1296...
Write the recursive form of the sequence above.
Tn = 6Tn-1 is the recursive form of the sequence
Finding the recursive function of a geometric sequenceA geometric sequence is determined by its common ratio. The standard recursive formula is expressed as:
Tn = rTn-1
Determine the common ratio of the sequence
r = 6/1 = 36/6
r = 6
Substitute the common ratio into the formula to have:
Tn = 6Tn-1
Hence the recursive form of the sequence above is Tn = 6Tn-1
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How to solve your problem: 8d+d+3d+2+4d
Answer:
d= -1/8
Step-by-step explanation:
8d+d+3d+2+4d= 16d+2
16d= -2
d= -1/8
what is -3x+y=6 on a graph?
The graph of the equation -3x+y=6 is linear and is attached with the answer below.
What is a linear equation?A linear equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.
The given linear equation is -3x+y=6. When we plot the linear equation -3x+y=6 on the graph it will be a straight line and the x and y-intercepts are -2 and 6 respectively.
The graph of the linear equation is attached with the answer below.
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Choose ALL answers that describe the polygon QRST if QR = 12, RS = 12, ST = 12, TQ = 12, m
Answer:
quadrilaterals
ok I only guss it
Help w/ this question its due today!
The 40th customer who gets the t-shirt and water bottle.
If the sporting goods store has 100 gifts each in stock, then the number of customers who get t-shirts and drinking bottles are 2 customers, namely the 40th customer and the 80th customer.
Determine the LCM(Least Common Multiples)In finding the LCM, we also use prime factorization, namely multiplying all the factor numbers and if there are the same, take the largest value, if both are the same, then take one of them.
For example, determine the LCM of 30 and 48
30 = 2 x 3 x 5
48 = 2 x 2 x 2 x 2 x 3 = 2⁴ x 3
The LCM of 30 and 48 is 2⁴ x 3 x 5 = 240
The above Question can be solved with the concept of LCM
where the 8th customer gets a T-shirt and the 10th customer gets a water bottle. To find out which customer gets the two gifts, then look for LCM from 8 and 10
LCM(8, 10) =2×2×2×5=40
LCM of 8 and 10 is 40.
So the 40th customer who gets the t-shirt and water bottle.
If the store has 100 gifts each in stock, then the number of customers who get t-shirts and drinking bottles are 2 customers, namely the 40th customer and the 80th customer.
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A carnival charges $6 to enter and $.75 per ticket. Write a function rule that models this situation.
Rule:
The function rule that models this situation is that increase in the number of tickets would lead to an increase in the total cost charged for each individual.
What is a direct relationship between two values?A direct relationship between two values is said to exist when the increase in one value leads to the increase of the other.
The cost of 1 ticket = $.75
The cost to enter the carnival = $ 6
Therefore the total cost for each individual = 6+0.75 = $6.75
The cost for two tickets for two individuals = 2× 6.75 = $13.5.
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a process in which a number is changed, such as by adding, subtracting, dividing or multiplying is definition of _____
Answer:operation
Step-by-step explanation:
5. A company produced 9,800 pairs of sunglasses
in one week, and 49 of the sunglasses failed
a quality inspection. If the company produces
1,400 pairs of sunglasses in one day, how many
would you expect to fail the quality inspection
The number of sunglasses that will fail the quality inspection are 7.
What is a ratio?
A ratio in mathematics demonstrates how many times one number is present in another. For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six.
We are given that, A company produced 9,800 pairs of sunglasses
in one week, and 49 of the sunglasses failed a quality inspection.
And based on this data we are asked to find the number of sunglasses which will fail the quality inspection If the company produces
1,400 pairs of sunglasses in one day
Let the number of sunglasses failing the quality inspection be x
hence the ratio becomes
9800/49 = 1400/x
x= 1400*49/9800
x= 7
The number of sunglasses that will fail the quality inspection are 7.
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Help pls due tomorrow
The angle measure of the missing angle is 630 - 11x.
What is the 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."
Given:
A non-regular hexagon.
The sum of all the interior angles of the hexagon is,
= (6 - 2) 180
= 4(180)
= 720
Now, the angle measure of the missing angle,
= 720 - 2x - 3x - 2x - 4x - 90
= 630 - 11x
Therefore, 630 - 11x is the required expression.
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