solve the number sentence

label Algebra
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schedule 1 Day
account_balance_wallet $5

a water output rate for the chen family sprinkler was 20L per hour. Water output rate for the thomas family was 25L per hour. The families used sprinklers combined for 45 hours. resulting in a total water output of 1050L. 

chen per hr=

thomas per hr=

Jun 7th, 2015

x+y =45

20x+25y=1050

20x+20y=900

5y =150

y=30

x=15

chen =15 hours

thomas = 30 hous

Jun 7th, 2015

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Jun 7th, 2015
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Jun 7th, 2015
Sep 24th, 2017
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