document.write( "Question 1009759: A dealer wishes to obtain 80 pounds of mixed cookies to sell for one dollar per pound. If he mixes cookies worth $1.20 per pound with the cookies worth $.70 per pound, find the number of pounds of each kind he should use \n" ); document.write( "
Algebra.Com's Answer #625235 by fractalier(6550)\"\" \"About 
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Call the amount at $1.20, x.
\n" ); document.write( "Then the amount at $.70 would be 80-x.
\n" ); document.write( "The set up is then
\n" ); document.write( "1.20x + .70(80-x) = 1(80)
\n" ); document.write( "1.2x + 56 - .7x = 80
\n" ); document.write( ".5x = 24
\n" ); document.write( "x = 48 pounds of the $1.20
\n" ); document.write( "80-x = 32 pounds of the $.70
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