HELP ASAP: WILL MARK BRAINLIEST: The Hayes family and the Butler family each used their sprinklers last summer. The water output rate for the
Hayes family's sprinkler was 20 L per hour. The water output rate for the Butler family's sprinkler was 15 L
per hour. The families used their sprinklers for a combined total of 50 hours, resulting in a total water output
of 825 L. How long was each sprinkler used?