document.write( "Question 716020: A bag containing 5 pounds of mixed nuts is 15% peanuts. How many pounds of peanuts must be added to the bag to produce a mixture that is 25% peanuts? \n" ); document.write( "

Algebra.Com's Answer #439701 by josgarithmetic(39621) $\"\"$ $\"About$

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Assign Variables:
\n" ); document.write( "M=amount of mixture before addition, 5 pounds
\n" ); document.write( "c=percent of mixture as peanuts before addition, 15%
\n" ); document.write( "p=how many pounds of peanuts to add, unknown
\n" ); document.write( "r=resulting percent peanuts after adding p pounds, 25%\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Create Equation:
\n" ); document.write( " $\"highlight%28%28M%2Ac%2Bp%2A100%29%2F%28p%2BM%29=r%29\"$ , the factor of 100 with p is because p is at 100%.
\n" ); document.write( "Solve for p.
\n" ); document.write( ".
\n" ); document.write( "skipping the steps here
\n" ); document.write( ".
\n" ); document.write( " $\"highlight%28p=M%28r-c%29%2F%28100-r%29%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now you simply substitute the given values to calculate p. \n" ); document.write( "

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