Question 260118
Show five-step process to solve the problem.DG's Plumbing and Heating charges $50 plus $65 per hour for emergency service. Bill remebers being billed just over $450 for an emergency call. How long to the nearest hour was the plumber at Bill's house? 
--------------
DG charges 50 + 65x dollars where x is the number of hours worked.
------------------------------
Solve 50 + 65x = 450 for "x"
65x = 400
x = 6.15 hrs
---
rounding to the nearest hour you get x = 6 hrs.
=================================================
Cheers,
Stan H.