ccar8Aria7cocathern ccar8Aria7cocathern

08-09-2016
Mathematics

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a plumber charges $55 for every service call, plus $20 for every hour. if you receive a bill for $150, how many hours did the plumber work at your house?

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breashaa breashaa

08-09-2016

subtract 55 from both sides.. divide both sides by 20 and get ... 4.75

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