Asked by S.G

A chemist mixed some 20% peroxide sol with some 30% peroxide sol to make 500ml of a 25% peroxide solution.How many ml of each solution should be used? HELP just cannot get this one..

Answers

Answered by Reiny
wouldn't you have something like

.20(x) + .30(500-x) = .25(500) ?
Answered by S.G
Thanks, will try working that again.
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