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Mathematics, 09.07.2021 22:10 sobell7725
When servicing a heating boiler and radiators, a plumer knows that the time he will take is given by the formula
time = 1 hour + 45 minutes per radiator
he charges his costumer a call-out fee of £30, plus £20 per hour
how much should a costumer be charged for servicing a heating boiler and four radiators
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Answers: 2
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When servicing a heating boiler and radiators, a plumer knows that the time he will take is given by...
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