Mathematics, 02.10.2019 05:00, dootdootkazoot

The lopez family and the morris family each used their sprinklers last summer. the lopez family's sprinkler was used for 15 hours. the morris family's sprinkler was used for 30 hours. there was a combined total output of 1725 l of water. what was the water output rate for each sprinkler if the sum of the two rates was 75 l per hour?

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The lopez family and the morris family each used their sprinklers last summer. the lopez family's sp...