The Young family and the Parker family each used their sprinklers last summer. The water output rate for the young family's sprinkler was 30 L per hour. The
water output rate for the Parker family's sprinkler was 25 L per hour. The families used their sprinklers for a combined total of 65 hours, resulting in a total
water output of 1825 L. How long was each sprinkler used?
Note that the ALEKS graphing calculator can be used to make computations easier.