Question

2. A computer repairman charges an initial fee of

$100 plus an hourly fee of $75.
Mr. Billings paid the repairman $475. How many
hours did the repairman work?

Answer 1

The repairman worked for 5 hours

Explanation:

use the given information to write an equation in slope intercept form (y=mx+b):

y = 75x + 100

Mr. Billings paid $475, so y = 475:

475 = 75x + 100

solve:

75x = 375

x = 5

The repairman worked for 5 hours

Answer 2

The answer is 5 hours.......