MATH SOLVE

3 months ago

Q:
# A plumber charges an initial amount to make a house call plus an hourly rate for the time he is working. A 1 hour job costs $90 and a 3 hour job costs $210. What is the initial amount and hourly rate that the plumber charges. Show work.

Accepted Solution

A:

He charges 30 as the intial amount and 60 per hour(60 plus 30 is 90 and 60 times 3 is 180 plus 30 is 210)