SOLUTION: how many onces of a 40% alchol must be mixed with 12 onces of a 45% alcohol solution to make a 42% alcohol solution
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Question 267037: how many onces of a 40% alchol must be mixed with 12 onces of a 45% alcohol solution to make a 42% alcohol solution
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
this is a mixture problem. Here is a table based on given information.
solutions . . . . . . . % . . . . . . . . ounces . . . . . . %ounces
40 . . . . . . . . . . . .40 . . . . . . . . . .x . . . . . . . . . . .40x
45 . . . . . . . . . . . .45 . . . . . . . . . .12 . . . . . . . . . .540
mixture . . . . . . . .42 . . . . . . . . . .x + 12. . . . . . .42x + 504
looking at the third column, we get
(i)
subtract 40x and then subtract 504 to get
(ii)
divide to get
(iii)
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