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Mathematics, 05.02.2021 01:00 sugeilochoa

The harris family and the carter family each used their sprinklers last summer. The water output rate for the Harris family's sprinkler was 25 L per hour. The water output rate for the Carter family's sprinkler was 15 L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 1075 L. How long was each sprinkler used?

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