document.write( "Question 477275: Ellen wishes to mix candy worth $1.15 per pound with candy worth $2.87 per pound to form 20 pounds of a mixture worth $1.58 per pound. How many pounds of the more expensive candy should she use? \n" ); document.write( "
Algebra.Com's Answer #327173 by stanbon(75887)\"\" \"About 
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Ellen wishes to mix candy worth $1.15 per pound with candy worth $2.87 per pound to form 20 pounds of a mixture worth $1.58 per pound. How many pounds of the more expensive candy should she use?
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\n" ); document.write( "Quantity Eq::: c + e = 20 lbs.
\n" ); document.write( "Value Eq:: 115c +287e= 158*20 cents
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\n" ); document.write( "Multiply thru the Quantity equation by 115:
\n" ); document.write( "115c + 115e = 115*20
\n" ); document.write( "115c + 287e = 158*20
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\n" ); document.write( "Subtract and solve for \"e\":
\n" ); document.write( "172e = 43*20
\n" ); document.write( "Amount of expensive candey needed = 5 lbs.
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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