Question

4) A-1 Plumbing charges a $60 service fee plus $25 per hour. Martin's Plumbing charges a $75 service
fee plus $15 per hour. For how many hours will both companies charge the same amount?

Answer 1

Answer:

1.5 hours

Step-by-step explanation:

Let's say the fees will be the same at "x" hours.

Then

$60+25x=75+15x\\10x=15\\x=1.5$

So the charge will be the same at 1.5 hours.