Question

A house painting company charges $376 plus $12 per hour. Another painting company charges $280 plus $15 per hour. a. How many hours, h, will a job have to be for both companies to charge the same amount? b. What will the cost be?

Answer 1

M: cost per hour
b: initial charge fee
x: hours (h)
To make both company to charge the same amount:
12x+376=15x+280
376-280=15x-12x
96=3x
X=32
So it took 32 hour to 2 company charge the same amount.
The cost gonna be: 12.(32)+376=760$