Answer:
Use a website named to get math equation answersStep-by-step explanation:
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Fred has $200 he wants to purchase a gym bag for $26 and as many pair of shoes as he can each pair of shoes is $45 what is the maximum number of pairs of shoes he can purchase in a addition to the gym bag?
Answer:
[tex]3\frac{13}{15}[/tex]
How I got the answer. 200-26=174
174÷45
Amy types at an average speed of 38 words per minute. She has already typed 1,450 words of her final paper, which will be more than 4,000 words. Which inequality can be used to solve for x, the number of minutes it will take Amy to finish typing her paper?
A. 38x- 1,450>76
B. 38(x + 1,450)>4,000
C. 38x> 4,000
D. 38x + 1,450> 4,000
Jessie works as a salesman. He earns a daily wage of 250 pesos and an additional
10 pesos for every 3 pieces of cell phone sold. If x represents the number of cell
phones sold, write the function for his daily earning (y) as a function of the number
of cell phones sold (x).
Answer:
[tex]y = 250 + \frac{10x}{3}[/tex]
Step-by-step explanation:
Given
[tex]Daily\ Wages = 250[/tex]
[tex]Additional = 10[/tex] for every 3
Required
Determine the function that represents Jessie's daily earnings:
From the question, we have that:
y = earnings
x = phones
If for 3 phones, he gets 10.
i.e.:
3 pieces = 10
then
[tex]1\ pieces = \frac{10}{3}[/tex] ----- By dividing both sides by 3
and
[tex]x\ pieces = \frac{10x}{3}[/tex] ----- By multiplying both sides by x
The above expression represents the additional earnings for x phones
So, daily earnings y is calculated as :
[tex]y = Daily\ Wages + Additional\ Earnings[/tex]
[tex]y = 250 + \frac{10x}{3}[/tex]
The function representing his daily earning (y) as a function of the number of cell phones sold (x) is y = (10/3)x + 250.
A linear equation is given by:
y = mx + b;
where y, x are variables, m is the slope of the line and b is the y intercept.
Let x represent the number of cell phones sold and y represent the daily earnings.
Since he has a daily wage of 250 pesos, hence b = 250. Also he makes additional 10 pesos for every 3 pieces of cell phone sold, hence m = 10/3.
The equation becomes:
y = (10/3)x + 250
Therefore the function representing his daily earning (y) as a function of the number of cell phones sold (x) is y = (10/3)x + 250
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A simple random sample of 64 observations was taken from a large population. The sample mean and the standard deviation were determined to be 320 and 120 respectively. The standard error of the mean is:________
a. 1.875
b. 40
c. 5
d. 15
e. None of the above
Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The mean is [tex]\= x = 320[/tex]
The standard deviation is [tex]\sigma = 120[/tex]
Generally the standard error of the mean is mathematically represented as
[tex]\sigma_x = \frac{\sigma}{ \sqrt{n} }[/tex]
=> [tex]\sigma_x = \frac{120}{ \sqrt{64} }[/tex]
=> [tex]\sigma_x =15[/tex]
What is the value of x?
50"
1009
A. 300
B. 1500
C. 1000
D. 500
Answer:
A. 30°
Step-by-step explanation:
The interior angles of a triangle ALWAYS add up to 180°. So, for this, you would use 100 + 50 + x = 180 and solve for x :)
Answer:
A. 30°
General Formulas and Concepts:
Pre-Alg
Equality PropertiesGeometry
All angles in a triangle add up to 180°.Step-by-step explanation:
Step 1: Set up equation
x + 100 + 50 = 180
Step 2: Solve for x
Combine like terms: x + 150 = 180Subtract 150 on both sides: x = 30°HELP!!! 98 POINTS!!!Evaluate the expression for x = 1.7. Enter your answer in the box.
x2 + 3x
Answer:
7.99
Step-by-step explanation:
x2 = x^2 I am assuming.
So,
x^2 + 3x = (1.7)^2 + 3(1.7) = 2.89 + 5.1 = 7.99
Answer:
x^2+3x=(1.7)^2+3(1.7)=2.89+5.1=7.99
Me pueden resolver esto porfa
Answer:
need points for school i have to have 50 points by 3 pm ill owe u promise :)
Step-by-step explanation:
make x the subject of the formula
Step-by-step explanation:
first cirscross it come 2nˆ4X=3L4mˆ2and divide each by 2nˆ4 to make X alone and it come, X=3L4mˆ2/2nˆ4. try my best ,if i am wrong tell me.
2
if x + 7 x = 9 then x =
Answer:
x = 1.12
Step-by-step explanation:
1.2 + 7 x 1.12 = 9.04
May I have brainliest please? :)
Answer:
x=9/8
Step-by-step explanation:
1. Combine like terms.
x+7x=9 ----> 8x=9
2. Divide both sides of the equation by the same term
8x=9 -----> 8x/8 = 9/8
3. Simplify
x = 9/8 or 1.125
Name numbers that’s round to 140,000 or 240,000 when rounded to the nearest ten thousand
Answer:
150,000, 130,000
Step-by-step explanation:
well, 4 or below go down 5 and above go up so go from there
HEE 1 15. Mary decides to take out a $4,000 student loan this year. If she will pay 10% interest compounded annually, how much will the total loan amount be in four years when she graduates?
Write the equation of a line passing through (4,2) and (4,-3) please help ASAP
Answer:
x=4
Also, for vertical lines there is no slope.
Help plz and thank you
Answer:
A- Mother Nature
Step-by-step explanation:
Mother Nature= $.40 per pound
That is better than all others
Xander travels 8,568 miles in 17 days on average, how many miles per day di he travel
Answer:
504
Step-by-step explanation:
To get how many miles he travelled per day,you have to divide 8,568 by 17.
Answer:
504
Step-by-step explanation:
The perimeter of a rectangle is 40 feet. The ratio of the width to the length is 2:3 find the length and the width
Width : Length
2 : 3
Perimeter = 2* width + 2*length
Ratio becomes:
Width : Length
4 : 6
Total units = 4 + 6 = 10
Perimeter = 40
Answer: Width is 8 ft and Length is 12 ft.
Sarah Meeham blends coffee for Tasti-Delight. She needs to prepare 150 pounds of blended coffee beans selling for $5.54 per pound. She plans to do this by blending tighter a high-quality bean costing $6.25 per pound and a cheaper bean $3.25 per pound. To the nearest pound, find how much high-quality coffee bean and how much cheaper coffee bean she should blend.
let p= pounds of expensive $6.50 coffe
Then 140-p = pounds of $2.00 coffee
6.5p + 2(140-p) = 4.89(140)
Multiply through the parenthesis,
combine like terms... solve for p.
Then you know how many pounds of
$6.50 coffee to use.
Subtract that from 140 to get how many
pounds of $2.00 coffee the use.
David owns a food truck that sells tacos and burritos. He sells each taco for $4.50 and each burrito for $7.75. Yesterday David made a total of $519.25 in revenue from all taco and burrito sales and there were twice as many tacos sold as there were burritos sold. Write a system of equations that could be used to determine the number of tacos sold and the number of burritos sold. Define the variables that you use to write the system.
If YX=3x-4 and MO=9x-20, then MO=? {Diagram not necessarily drawn to scale.} *
Answer:
Step-by-step explanation:
I assume that XY is midsegment of a triangle, then MO = 2 XY
9x - 20 = 2( 3x - 4 )
9x - 20 = 6x - 8
3x = 12
x = 4
MO = 9(4) - 20 = 16 units
Express the ratio below in its simplest form.
84: 24
Answer:
7/2
Step-by-step explanation:
84/24
42/12
21/6
7/2
Step-by-step explanation:
[tex]84 \div 24 = \\ 42 \div 12 = \\ 21 \div 6 = \\ 7 \div 2[/tex]
final answer 7/2
Solving Problems Involving Inverse Functions
With solutions please.
Answer:
10 non- permanent employeesStep-by-step explanation:
Let number of employees be x
Required equation:
12000 + 512x = 17120Solution:
512x = 17120 - 12000512x = 5120x = 5120/512x = 10Answer: 10 non- permanent employees
7. Emma is varnishing the floor of a circular room with diameter 8m. One tin of varnish will cover an area of 3m?.
How many tins of varnish will she need to buy to varnish the floor of the room
Answer:
a = 16*3.1415/3 = 16.76
Step-by-step explanation:
a =pi*r^2
r =D/2
r = 8/2
r = 4
a = pi*4^2
a=pi16
pi = 3.1416
Find the volume between the cone
X= sqrt(y^2 + z^2) and the sphere
x^2 + y^2 + z^2 = 16.
The volume between the cone and the sphere is approximately 23.55 cubic units.
We are given that;
[tex]X= sqrt(y^2 + z^2)[/tex]
[tex]x^2 + y^2 + z^2 = 16.[/tex]
Now,
To find the volume between the cone and the sphere, we can use a triple integral in spherical coordinates.
The cone corresponds to the equation [tex]$\rho = 2\cos(\phi)$[/tex], where [tex]$\rho$[/tex] is the radial distance, [tex]$\phi$[/tex]is the polar angle, and [tex]$\theta$[/tex] is the azimuthal angle. The sphere corresponds to the equation [tex]$\rho = 4$[/tex]. The limits of integration are:
[tex]$0 \leq \theta \leq 2\pi$$0 \leq \phi \leq \frac{\pi}{4}$$2\cos(\phi) \leq \rho \leq 4$[/tex]
The volume element in spherical coordinates is [tex]$\rho^2\sin(\phi)d\rho d\phi d\theta$[/tex]
Therefore, the volume is:
[tex]$V = \int_{0}^{2\pi}\int_{0}^{\frac{\pi}{4}}\int_{2\cos(\phi)}^{4}\rho^2\sin(\phi)d\rho d\phi d\theta$[/tex]
Evaluating this integral, we get:
[tex]$V = \frac{32}{3}\pi - 8\sqrt{2}\pi + 16\pi$[/tex]
Therefore, by volume of cone the answer will be 23.55 cubic units.
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A small lawnmower company produced 1,500 lawnmowers in 2008. In an effort to determine how maintenance-free these units were, the company decided to conduct a multiyear study of the 2008 lawnmowers. A sample of 200 owners of these lawnmowers was drawn randomly from company records and contacted. The owners were given an 800 number and asked to call the company when the first major repair was required for the lawnmowers. Owners who no longer used the lawnmower to cut their grass were disqualified. After many years, 183 of the owners had reported. The other 17 disqualified themselves. The average number of years until the first major repair was 3.3 for the 183 owners reporting. It is believed that the population standard deviation was 1.47 years. If the company wants to advertise an average number of years of repair-free lawn mowing for this lawnmower, what is the point estimate? Construct a 95% confidence interval for the average number of years until the first major repair.
Answer:
The 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).
Step-by-step explanation:
The (1 - α)% confidence interval for the average using the finite correction factor is:
[tex]CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}[/tex]
The information provided is:
[tex]N=1500\\n=183\\\sigma=1.47\\\bar x=3.3[/tex]
The critical value of z for 95% confidence level is,
z = 1.96
Compute the 95% confidence interval for the average number of years until the first major repair as follows:
[tex]CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}[/tex]
[tex]=3.3\pm 1.96\times\frac{1.47}{\sqrt{183}}\times\sqrt{\frac{1500-183}{1500-1}}\\\\=3.3\pm 0.19964\\\\=(3.10036, 3.49964)\\\\\approx (3.1, 3.5)[/tex]
Thus, the 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).
if a1=6 and an=2an-1 then find the value of a4
The value of A4 for the given condition if a1=6 and an=2an-1 is 48.
A1 = 6 means a(1) == 6
This is the first term of the sequence. Then you have the “rule” or the “closed form” of the sequence,
which is: an = 2an - 1 for n>1,
Should be written like this: a(n) == 2 × (an - 1) for n>1.
Now, It says that for any n>1, you should do this:
a(2) - that is the 2nd term is:
a(2) == 2 * (an - 1).
But (an -1) means “the term before this one”, which is the first term.
So, a(2) ==2 × 6 == 12, which is the 2nd term.
The 3rd term will be: a(3) == 2 × 12 = 24.
And the 4th term will be:
a(4) == 2 × 24 = 48.
So,the sequence will be:
6 , 12, 24, 48.
Thus, If a1=6 and an=2an-1, then the value of A4 under the indicated circumstance is 48.
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Caitlin has a $10 gift certificate to the music
store. She has chosen a number of CDs from the $7
bargain bin. If the cost of the CDs is $32 after the gift
certificate is credited, how many CDs did Caitlin buy
9514 1404 393
Answer:
6
Step-by-step explanation:
Before application of the $10 credit, Caitlin's purchase was $32 +10 = $42. Your knowledge of multiplication facts tells you that 42 = 6×7. If each CD was $7, Caitlin bought 6 of them.
_____
If you need an equation, you could use ...
7x -10 = 32 . . . . the final value of Caitlin's purchase
7x = 42 . . . . . . . .add 10
x = 42/7 = 6 . . . . Caitlin bought 6 CDs.
A line segment has endpoints at (1,6) and (9,-10).
The midpoint of the segment is located at what point?
Answer:
Use the midpoint formula M = (x1+x2/2 , y1+y2/2)
M = (1+9/2 , 6+ -10/2 ) = 5,-2
The midpoint is located at 5,-2.
Answer:(5,-2)
Step-by-step explanation:
(1+9)/2 , (6-10)/2 = (5,-2)
can u pls help me with this question
Answer:
45 cookies
Step-by-step explanation:
Use a unit rate.
With a unit rate, we find the number of cookies that are baked using 1 scoop.
(30 cookies)/(6 scoops) = 5 cookies/scoop
The rate of 30 cookies to 6 scoops is the same as the unit rate of 5 cookies/scoop.
Now we multiply the unit rate by 9 scoops.
9 scoops * 5 cookies/scoop = 45 cookies
Answer: 45 cookies
The completely factored form of z^5 + 4z^4 - 12z^3
Answer:
−108z 5−64z 3+3z 2−24z−384/6
Step-by-step explanation:i just looked it up.
Find the product of the binomial (4x+3) with the trionomial (2x square -5x -3)
Answer:
The product of given binomial and trinomial is:
[tex]8x^3-34x^2-27x-9[/tex]
Step-by-step explanation:
A binomial is a polynomial with 2 terms and trinomial is a term with 3 terms.
Given
[tex](4x+3)\\and\\(2x^2-5x-3)[/tex]
Distributive property can be used to find the result.
Writing mathematically
[tex](4x+3)(2x^2-5x-3)\\= 4x(2x^2-5x-3)+3(2x^2-5x-3)\\= 8x^3-40x^2-12x+6x^2-15x-9[/tex]
Combining alike terms
[tex]= 8x^3-40x^2+6x^2-12x-15x-9\\= 8x^2-34x^2-27x-9[/tex]
Hence,
The product of given binomial and trinomial is:
[tex]8x^3-34x^2-27x-9[/tex]
Consider functions f and g. [tex]f(x) = 3\sqrt{x} + 1[/tex] What is the value of f(g(1))?
A. 1
B. 9
C. 0
D. 3\sqrt{2} + 1
Answer:
A. 1
Step-by-step explanation:
First, plug 1 into g(x). This is equal to 0.
The picture is like a table, so if the input is 1, the output is 0.
Then, plug 0 into f(x). This is equal to 1.
Answer:
1
Step-by-step explanation: