Question

The Kim family and the Wilson family each used their sprinklers last summer. The water output rate for the Kim family's sprinkler was 15 L per hour. The wateroutput rate for the Wilson family's sprinkler was 35 L perhour. The families used their sprinklers for a combined total of 55 hours, resulting in a total wateroutput of 1625 L., How long was each sprinkler used?

Answer 1

Kim's family sprinkler 15L per hour (15x)

Wilson's family sprinkler 35L per hour(35y)

Combined total= 55 hours/ 1625L

How long was each sprinkler used?