Question

A repairman charges $55 for a home visit plus $45 per hour for the time he spends making repairs.How many hours did he work if he was paid $212.50 for a home visit ? around to nearest tenth

Answer 1

3.5 hours

Explanation:

use this linear equation

y = 45x + 55 y is the amount earned and x is the hours worked

plug in 212.50 for y then solve for x

212.50 = 45x + 55

157.5 = 45x

3.5 = x

so he worked for 3.5 hours or 3 hours and 30 minutes

hope this helps <3