# SOLUTION: An advertisement for grape drink claims that the drink contains 10% grape juice. How much pure grape juice would have to be added to 5 quarts of the drink to obtain a mixture of 40

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 Click here to see ALL problems on Mixture Word Problems Question 213560This question is from textbook : An advertisement for grape drink claims that the drink contains 10% grape juice. How much pure grape juice would have to be added to 5 quarts of the drink to obtain a mixture of 40% grape juice?This question is from textbook Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!.10*5+X=.4(5+X) .5+X=2+.4X X-.4X=2-.5 .6X=1.5 X=1.5/.6 X=2.5 QTS. OF PURE GRAPE JUICE IS USED. PROOF: .10*5+2.5=.4(5+2.5) .5+2.5=.4*7.5 3=3