Mathematics, 23.03.2020 23:35 yilianblanco

Two mechanics worked on a car. The first mechanic charged $45 per hour, and the second mechanic charged $75 per hour. The mechanics worked for a combined total of 15 hours, and together they charged a total of $825. How long did each mechanic work?

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Two mechanics worked on a car. The first mechanic charged $45 per hour, and the second mechanic char...

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