Question 1145782
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How many mililiters x of a H percent solution must be mixed with Y mililiters of a L percent solution to obtain a T percent solution ?
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Unknown volume to use, x of the H% solution


{{{(Hx+LY)/(x+Y)=T}}}

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{{{Hx+LY=T(x+Y)}}}


{{{Hx+LY=Tx+TY}}}

{{{Hx-Tx=TY-LY}}}

{{{(H-T)x=Y(T-L)}}}

{{{highlight(x=Y((T-L)/(H-T)))}}}--------substitute  your given values.