tatilynnsoto17
05.05.2020 •
Mathematics
When wiring a house, an electrician knows that the time she will take is given by the formula
Time = 2hour +12 mins per lightswitch
She charges her customers a call out fee of £35, plus £30 per hour.
How much should a customer be charged for wiring a house with 10 lightswitch?
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Ответ:
£155
Step-by-step explanation:
look at the formula
first solve 12 minutes per light switches
12*10(lightswitches)= 120 minutes
we know that 120 minutes = 2 hours
the task says that she charges £30 per hour
so, 2 hours+ 2 hours= 4 hours
now do
4*30= £120
120+35(call-out fee)= £155
I really hope this helped.
Ответ:
hi
Step-by-step explanation: