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How long did each storm last?

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Two storms occurred in one week in a certain area. in the first storm 25ml of rain fell per hour, and in the second strom 30ml of rain fell per hours. Rain lasted a total of 55 hours, resulting in a total rainfall of 1525 ml. How long did each storm last?

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This solution shows how to determine how long a storm lasts using a system of equations.

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