The Wood family and the Davis family each used their sprinklers last summer. The water output rate for the Wood family's sprinkler was 40L per hour. The water output rate for the Davis family's sprinkler was 30L per hour. The families used their sprinklers for a combined total of 50 hours, resulting in a total water output of 1850L. How long was each sprinkler used? Wood Family sprinkler: Davis Family sprinkler:

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.