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Mathematics, 13.11.2019 22:31 tamiyahtapp

Solving a value mixture problem using a system of linear equations

two mechanics worked on a car. the first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. together they charged a total of $2125 what was the rate charged per hour by each mechanic if the sum of the two rates was $140 per hour?

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Solving a value mixture problem using a system of linear equations

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