document.write( "Question 907158: You have 15 pounds of a peanuts and cashews mixture that sells for 8 dollars a pound. how many pounds of peanuts worth 6 dollars a pounds would you have to add to make a mixture worth 7.50 a pound \n" ); document.write( "
Algebra.Com's Answer #550170 by richwmiller(17219)\"\" \"About 
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We have 15 lb of $8 blend
\n" ); document.write( "We want to add some $6 blend to make $ 7.50 blend
\n" ); document.write( "0.06*x+0.08*15=0.075(15+x)
\n" ); document.write( "0.06*x+1.2=1.125+0.075x
\n" ); document.write( "0.06x-0.075x=1.125-1.2
\n" ); document.write( "-0.015x=-0.075
\n" ); document.write( "x=5.0 lb at $6 (0.3) is added to 15 lb at $8(1.2) to make $7.50 of 20.0 lb(1.5)
\n" ); document.write( "check
\n" ); document.write( "0.06*5.0+0.08*15=0.075(15+5.0)
\n" ); document.write( "0.3+1.2=0.075(20.0)
\n" ); document.write( "1.5=1.5
\n" ); document.write( "ok
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