document.write( "Question 788848: How many mL of 70% alcohol should be mixed with 20 mL of 20% alcohol to prepare 50% alcohol? \n" ); document.write( "
Algebra.Com's Answer #478626 by josgarithmetic(39618)\"\" \"About 
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Let v = mL of the 70% alcohol to use\r
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\n" ); document.write( "\n" ); document.write( "\"%2820%2A20%2B70v%29%2F%2820%2Bv%29=50\"
\n" ); document.write( "Solve for v.
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