document.write( "Question 1133266: What quantity of 74% acetic acid solution must be mixed with a 14% acetic acid solution to produce 660 mL of 26% solution? \n" ); document.write( "

Algebra.Com's Answer #750442 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = ml of acetic acid solution needed
\n" ); document.write( " $\"+.74x+\"$ = ml of acetic acid in 74% solution
\n" ); document.write( " $\"+.14%2A%28+660+-+x+%29+\"$ = ml of acetic acid in the 14% solution
\n" ); document.write( "--------------------------------------------------------------
\n" ); document.write( " $\"+%28+.74x+%2B+.14%2A%28+660+-+x+%29+%29+%2F+660+=+.26+\"$
\n" ); document.write( " $\"+.74x+%2B+92.4+-+.14x+=+.26%2A660+\"$
\n" ); document.write( " $\"+.6x+=+171.6+-+92.4+\"$
\n" ); document.write( " $\"+.6x+=+79.2+\"$
\n" ); document.write( " $\"+x+=+132+\"$
\n" ); document.write( "132 ml of the 74% acetic acid solution are needed
\n" ); document.write( "--------------------------------------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+.74x+=+.74%2A132+\"$
\n" ); document.write( " $\"+.74x+=+97.68+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+.14%2A%28+660+-+x+%29+=+.14%2A%28+660+-+132+%29+\"$
\n" ); document.write( " $\"+.14%2A%28+660+-+x+%29+=+.14%2A528+\"$
\n" ); document.write( " $\"+.14%2A%28+660+-+x+%29+=+73.92+\"$
\n" ); document.write( " $\"+%28+97.68+%2B+73.92+%29+%2F+660+=+.26+\"$
\n" ); document.write( " $\"+171.6%2F660+=+.26+\"$
\n" ); document.write( " $\"+.26+=+.26+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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