Question

Mark works at a local fast-food restraunt. He currently makes 350 per week after taxes plus 40 extra cash every fourth week for cleaning out the freezer. Mark is trying to save up for a car. He really wants a Mustang. He knows that he can buy a used Mustang in good condition for between 3600 and 7200. The equation below represents this situation, where x is the number of weeks worked and P is the price of the car.

Answer 1

\[\frac{ 1 }{ 4 }(40x) + 350x = P\]

What is the minimum weeks of work Mark needs to buy his Mustang.

20

7

10

15


I think it's 15.

Answer 2

I know 7 = 2450, which isn't enough

15 = 5280, which is enough.

Answer 3

I think It's 10

Answer 4

What is your reasoning for this?

Answer 5

because P=360x

Answer 6

x=10 => P=3600
It's enough.

Answer 7

k

Answer 8

I have not understand yours yet!

Answer 9

sorry, my Eng is very bad

Answer 10

Thank you

Answer 11

yeah

Answer 12

:D