SOLUTION: if you have spend $350 on equopement to clean offices. and for every office you spend $4.00 on supplies.. how many offices must I clean to come even if i charge $25 per office. I

Question 574173: if you have spend $350 on equopement to clean offices. and for every office you spend $4.00 on supplies.. how many offices must I clean to come even if i charge $25 per office. I know i need a linear equation but i'm having problems creaing one. this is what i wrote 25x-4y=350. what am i doing wrong.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
if you have spend $350 on equipment to clean offices. and for every office you spend $4.00 on supplies.. how many offices must I clean to come even if i charge $25 per office.
----
Cost = 350 + 4x
Revenue = 25x
---
To come even Cost must equal Revenue:
Solve:
350 + 4x = 25x
21x = 350
x = 16 2/3 (# of office to clean to break even)
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Cheers,
Stan H.
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