document.write( "Question 97894: How many pounds of nuts that costs$1.10 per pound must be mixed with 50 pounds of nut that cost $1.80 per pound to make a mixture that cost $1.30 per pound?\r
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Algebra.Com's Answer #71281 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
Let x=number of pounds of nuts that cost $1.10 per pound
\n" ); document.write( "Value of these nuts=$1.10x
\n" ); document.write( "Then 50-x=number of pounds of nuts that cost $1.80 per pound
\n" ); document.write( "Value of these nuts =$1.80(50-x)\r
\n" ); document.write( "\n" ); document.write( "Value of final mixture = $1.30(50)\r
\n" ); document.write( "\n" ); document.write( "Now we know that the value of the nuts before they are mixed ($1.10x+$1.80(50-x)) is equal to the value of the nuts after they are mixed($1.30*50). So our equation to solve is:\r
\n" ); document.write( "\n" ); document.write( "$1.10x+$1.80(50-x)=$1.30*50 get rid of parens\r
\n" ); document.write( "\n" ); document.write( "$1.10x+$90-$1.80x=$65 subtract $90 from both sides\r
\n" ); document.write( "\n" ); document.write( "$1.10x+$90-$90-$1.80x=$65-$90 combine like terms
\n" ); document.write( "-$0.70x=-$25 divide both sides by -$0.70\r
\n" ); document.write( "\n" ); document.write( "x=35.714 lbs of nuts that cost $1.10 per pound\r
\n" ); document.write( "\n" ); document.write( "CK\r
\n" ); document.write( "\n" ); document.write( "(35.714)($1.10)+($1.80)(50-35.714)=$1.30*50\r
\n" ); document.write( "\n" ); document.write( "39.2854+25.714=65
\n" ); document.write( "65.002~65\r
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\n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor\r
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