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Mathematics, 26.06.2019 20:00 kiyomi58
Two mechanics worked on a car. the first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. together they charged a total of $1550. what was the rate charged per hour by each mechanic if the sum of the two rates was $130 per hour?
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Two mechanics worked on a car. the first mechanic worked for 15 hours, and the second mechanic worke...
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