document.write( "Question 762268: Using the given variable write an equation or inequality that comes from the following word problem. Make no attempt to simplify or solve equation.
\n" ); document.write( "How many liters of 40% acid should be combined with a 20 liter mixture that is 15% acid in order to produce a mixture that is 25% acid? Use X= amount of 40% acid to add. (the equation will contain decimals) \n" ); document.write( "

Algebra.Com's Answer #463806 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = liters of 40% acid to be added
\n" ); document.write( " $\"+.4x+\"$ = liters of acid in 40% acid
\n" ); document.write( " $\"+.15%2A20+=+3+\"$ liters of acid in 15% acid
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\n" ); document.write( " $\"+%28+.4x+%2B+3+%29+%2F+%28+x+%2B+20+%29+=+.25+\"$ \r
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