Question

Wayne charges the following for repairing washing machines:

£28 call-out charge + £16 for each half-hour he spends on the repair

What will the total cost be for a repair which takes one and a half hours?

Answer 1

Out-charge= C

charges per hour= x

Total cost= y

In one and a half hours= 3half hours

$y=mx+c$

$=16x+28$

$=(16*3)+28$

$=48+28$

$=76$

The total repair cost is $\epsilon76$