Asked by Jaspreet

How many litres of 30percent alcohol solution must be mixed with 30litre of a90percent solution to get a 80percent solution?

7 years ago

Answered by Damon

.3 x + .9 (30) = .8 (x+30)

7 years ago

Answered by Steve

.30x + .90*30 = .80(x+30)
Now just find x.

7 years ago

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