document.write( "Question 1072131: You have 10 cups of a cleaning solution that is 10% white vinegar and 90% water. You want the mixture to be 20% white vinegar and 80% water. How many cups of white vinegar do you need to add to the mixture? \n" ); document.write( "

Algebra.Com's Answer #687009 by josgarithmetic(39617) $\"\"$ $\"About$

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x, amount of white vinegar to add\r
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\n" ); document.write( "\n" ); document.write( " $\"%2810%2A10%2B100%2Ax%29%2F%28x%2B10%29=20\"$ \r
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\n" ); document.write( " $\"%2810%2B10x%29%2F%28x%2B10%29=2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"10%2B10x=2x%2B20\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"8x=10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=10%2F8=5%2F4=1%261%2F4\"$ \r
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\n" ); document.write( "fixed mistake \n" ); document.write( "

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