Answer:
The repairman worked 5hours
Step-by-step explanation:
Initial fee = $100
Charge per hour = $75
This simply implies that the repairman charges $100 and charge 75 for every hour worked.
Initial fee = $100
Charge per hour = $75
To find the hours work when his total work fee is 475, we should understand that,
Total work fee = initial fee + total charges
Total charges = charge per hour * hour worked.
Total work fee = initial free + (charge per hour * hour worked.)
475 = 100 + 75*h
Collect like terms
75h = 475 - 100
75h = 375
Divide both side by 75 .
75h/75 = 375/75
h = 5.
Since h represent hour work by the repairman.
The repairman worked 5hours
