SOLUTION: The Harris family and the Hayes family each used their sprinklers last summer. The water output rate for the Harris family's sprinkler was
30L
per hour. The water output rate f
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30L
per hour. The water output rate f
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Question 976205: The Harris family and the Hayes family each used their sprinklers last summer. The water output rate for the Harris family's sprinkler was
30L
per hour. The water output rate for the Hayes family's sprinkler was
35L
per hour. The families used their sprinklers for a combined total of
55
hours, resulting in a total water output of
1800L
. How long was each sprinkler used? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! harris is R hrs
hayes is S hrs
R+S=55 hours,
R=55-S
(55-S)*30=1650-30S units are hours*liters/hour-hours
S*35=35S
Their sum is 1800 L.
1650-30S+35S=1800
5S=150
S=30 hours
R=25 hours
30*35=1050 L
25*30=750 L
add to 1800 L
