SOLUTION: How much water should be added to 5 gallons of pure juice to make an orange juice mixture that is 90% juice?

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Question 199533This question is from textbook
: How much water should be added to 5 gallons of pure juice to make an orange juice mixture that is 90% juice? This question is from textbook

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
How much water should be added to 5 gallons of pure juice to make an orange juice mixture that is 90% juice?
.
Let x = gallons of water added
then
5 = .90(5+x)
5 = 4.5 + .90x
.5 = .90x
.5/.90 = x
5/9 gallons = x (water added)
or
0.556 gallons = x