document.write( "Question 771162: What quantity of 60 per cent acid solution must be mixed with a 30 solution to produce 810 mL of a 50 per cent solution? \n" ); document.write( "

Algebra.Com's Answer #469972 by josgarithmetic(39618) $\"\"$ $\"About$

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Add v mL of 60% acid to u mL of 30% acid solution to produce 810 mL of 50% acid solution.\r
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\n" ); document.write( "\n" ); document.write( "{amount of just acid}/{amount of resulting solution}={concentration of resulting solution}\r
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\n" ); document.write( "\n" ); document.write( " $\"%2830u%2B60v%29%2F810=50\"$ AND YOU WILL ALSO NEED $\"highlight%28u%2Bv=810%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Simplify the rational equation quickly:
\n" ); document.write( " $\"%283u%2B6v%29%2F810=5\"$
\n" ); document.write( " $\"%28u%2B2v%29%2F270=5\"$
\n" ); document.write( "then managing symbols,
\n" ); document.write( " $\"u%2B2v=270%2A5\"$
\n" ); document.write( " $\"highlight%28u%2B2v=1350%29\"$ , easier to work with this form.\r
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\n" ); document.write( "\n" ); document.write( "The rest left unfinished so you can do the rest. Two equations for the system, highlighted. \n" ); document.write( "

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