Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean an office, you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even?

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Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean an office, you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even?

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Answer 1 · 2018-07-12T05:03:49

Number of offices to be cleaned to cover the cost of equipment $= 15$ $=15$

Explanation:

Cost of equipment $= $ .315$ $=$.315$
Cost of supplies $= $ .4$ $=$.4$
Charge per office $= $ .25$ $=$.25$
Number of offices to be cleaned to cover the cost of equipment $= x$ $=x$

Then -

$25 x - 4 x = 315$ $25x-4x=315$

$21 x = 315$ $21x=315$

$x = \frac{315}{21} = 15$ $x=315/21=15$

Number of offices to be cleaned to cover the cost of equipment $= 15$ $=15$

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Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean an office, you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even?

1 Answer

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