Question 1205792
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One canned juice drink is 30​% orange​ juice; another is 5% orange juice. How many liters of each should be mixed together in order to get 25 L that is 9​% orange​ juice?
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Every two-part mixture of this type works the SAME way.  


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One canned juice drink is H​% orange​ juice; another is L% orange juice. How many liters of each should be mixed together in order to get M liters that is T​% orange​ juice?
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v, the volume of the H% orange juice drink
M-v, the volume of the L% orange juice drink


{{{highlight_green(Hv+L(M-v)=TM)}}}
-
{{{Hv+LM-Lv=TM}}}
{{{(H-L)v=TM-LM}}}
{{{highlight(v=M((T-L)/(H-L)))}}}


Substitute what you are given, and evaluate.