document.write( "Question 179935: How many pounds of walnuts at 84 cents Lb should be mixed with 20lb of pecans at $1.20/lb to give a mixture worth $1.04/lb. \n" ); document.write( "

Algebra.Com's Answer #134837 by Mathtut(3670) $\"\"$ $\"About$

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let x and y be the amount of walnuts and pecans respectively
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\n" ); document.write( "x+y=20................eq 1
\n" ); document.write( ".84x+1.2y=1.04(20)....eq 2
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\n" ); document.write( "rewrite eq 1 to x=20-y and plug that value into eq 2
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\n" ); document.write( ".84(20-y)+1.2y=20.8
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\n" ); document.write( "16.8-.84y+1.2y=20.8
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\n" ); document.write( ".36y=4
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\n" ); document.write( " $\"highlight%28y=11.11%29\"$ pounds of pecans
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\n" ); document.write( " $\"highlight%28x=20-11.11=8.89%29\"$ pounds of walnuts \n" ); document.write( "

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