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ivanzaharov [21]
3 years ago
7

Grace, a hairdresser, charges $18 for a haircut and $70 for a perm. She did 36 perms this month. The total amount of money Grace

took in was $4,608. How many haircuts did Grace do this month?
Mathematics
1 answer:
Licemer1 [7]3 years ago
6 0
116 haircuts since 36 times 70 is 2520 and that is the amount of money she earned for perms. So then 4608 subtracted by 2520 is 2088 and 2088 divided by 18 is 116 so that is the answer. 
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sleet_krkn [62]

Answer:

y=3

Step-by-step explanation:

7 0
2 years ago
Solve the system of equations y = 2x + 3 and 4x - 2y = -6 using a graphical method.
emmasim [6.3K]

Answer:

-1

Step-by-step explanation:

You are asked to solve this set by substitution. Note that the first equation defines

the value of y in terms of x. Therefore, you can use the right side of this equation

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2x + 3 = 4x + 7

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Let's set the goal of getting all the terms that contain x isolated on the left side of

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of the +3 on the left side by subtracting 3 from the left side. But if you subtract

3 from the left side you must also subtract 3 from the right side. These subtractions

result in the following sequence:

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2x + 3 - 3 = 4x + 7 - 3

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Combining numbers on the left side and on the right side simplifies the equation to:

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2x = 4x + 4

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Now, in a similar fashion, let's get rid of the 4x on the right side by subtracting

4x from the right side. When we do this subtraction, to keep the equation in balance

we must also subtract 4x from the left side. This results in:

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2x - 4x = 4x - 4x + 4

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On both sides of the equation combine terms containing x to get:

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-2x = 4

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Finally, solve for x by dividing both sides of the equation by -2 because -2 is the multiplier

of x. This results in:

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x = 4/-2 = -2

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So now that we know x = -2, we can return to either one of the original equations  

in the equation set and substitute -2 for x. Then we can solve for y. Let's return

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y = 2x + 3

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Then substituting -2 for x gives:

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y = 2*(-2) + 3 = -4 + 3 = -1

7 0
3 years ago
members of a cookie club are selling cookie's for $2.50 per box. their goal is to sell enough boxes to total at least $350 in sa
bearhunter [10]

Answer:

They would need to sell more than or equal to 140 boxes of cookies.

Step-by-step explanation:

The equation would be

2.50t >= 350

--------   -------

2.50     2.50

t >= 140

5 0
2 years ago
How to find surface area of a right triangular prism to the nearest whole number?
vovangra [49]
The area of the two triangular bases is
  (total base area) = 2×(1/2)bh
    = bh
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The area of the three rectangles making up the remaining faces of the prism is
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Then the surface area of the prism is the sum of these
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When rounded to the nearest whole number, this is
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5 0
2 years ago
(geometry) PLZ HELP ASAP!
creativ13 [48]

Answer:

About 25.1 cubic meters

Step-by-step explanation:

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Hope this helps!

8 0
3 years ago
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