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04.02.2021 •
Mathematics
Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2350. What was the rate charged per hour by each mechanic if the sum of the two rates was $185 per hour?
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Ответ:
1: by seeing where they intersect.
2: an ordered pair, the solution to a system of equations is always an ordered pair. in this case (-1,-2)