Question

A painter uses the expression 35h + 30c to determine how much he charges a customer for a job that takes h hours and c cans of paint. His last job required 3 cans of paint and took 15 hours to complete. How much did the painter charge? a) $540 b) $555 c) $615 d) $638

Answer 1

c) $615

Explanation:

The expression used to determine how much is the charge for the customer after the job is

`p=35h+30c`

where

h is the number of hours the job took

c is the number of cans of paint used during the job

In this problem:

c = 3 (the painter used 3 cans of paint)

h = 15 (the painter took 15 hours for the job)

So substituting these values into the equation for p, we find the total value that the painter charged for the job:

`p=35\cdot 15 + 30 \cdot 3 =615`

So, the correct answer is

c) $615