Mathematics, 30.11.2021 05:40 levicorey846

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The James family and the Barnes family each used their sprinklers last summer. The water output rate for the James family's sprinkler was 35 L per hour. The
water output rate for the Barnes family's sprinkler was 40 L per hour. The familles used their sprinkers for a combined total of 60 hours, resulting in a total
water output of 2300 L. How long was each sprinkler used?

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The James family and the Barnes family...