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set up and solve system of linear equations

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Two rainstorms occurred in one week in a certain area. In the first storm 35 mL of rain fell per hour, and the second storm 40 mL of rain fell per hour. Rain fell that week for a total of 70 hours for a total rainfall of 2650mL. How long was each storm?

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Solution Summary

The solution shows how to set up and solve system of linear equations to find out how long the two rainstorms lasted.

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x: the length of the first storm (in hours); y: the length of the second storm (in hours)

Rain fell that week for a total of 70 hours, so
x + y = 70

volume of the storm = rate ...

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