The Nguyen family and the Cooper family each used their sprinklers last summer. The water output rate for the Nguyen family's sprinkler was 30L per hour. The water output rate for the Cooper family's sprinkler was 35L per hour. The families used their sprinklers for a combined total of 40 hours, resulting in a total water output of 1325L. How long was each sprinkler used?

neither i nor ii 56 / 4.9 = 11.91489362 and 82 / (11+5) =5.125 so i is wrong

ii. (24/8+2) times 3 = 15 and (42+9)/2 =25.5

step-by-step explanation:

56

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

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