Mathematics

Mathematics, 17.11.2019 18:31, bernie24

When wiring a house, an electrician knows that the time she will take is given
by the formula
time = 2 hours + 12 minutes 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 lightswitches?

answer

Answers: 1

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When wiring a house, an electrician knows that the time she will take is given
by the formula<...

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