Mathematics, 06.03.2020 18:57 MINDYDELANO
A mechanic worked 20 hours. another mechanic worked 15 hours. together they charged a total of $1950. what was the rate charged per hour for each mechanic if the sum of the two rates were $115 per hour
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A mechanic worked 20 hours. another mechanic worked 15 hours. together they charged a total of $1950...
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