SOLUTION: Show your work:
How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% liq
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Question 731968: Show your work:
How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% liquid oxeygen
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
.80X+.40*250=.70(250+X)
.80X+100=175+.70X
.80X-.70X=175-100
.10X=75
X=75/.10
X=750 GAL OF 80% OXYGEN IS USED.
PROOF:
.80*750+.40*250=.70(250+750)
600+100=.7*1000
700=700
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