document.write( "Question 227277: peanuts sell for $3 per pound. cashews sell for $6 per pound. how many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture that sells for $4.20 per pound? \n" ); document.write( "
Algebra.Com's Answer #168960 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
12*3+6x=4.20(12+x)
\n" ); document.write( "36+6x=50.4+4.2x
\n" ); document.write( "6x-4.2x=50.4-36
\n" ); document.write( "1.8x=14.4
\n" ); document.write( "x=14.4/1.8
\n" ); document.write( "x=8 pounds of cashews is used.
\n" ); document.write( "Proof:
\n" ); document.write( "12*3+6*8=4.2(12+8)
\n" ); document.write( "36+48=4.2*20
\n" ); document.write( "84=84
\n" ); document.write( "
\n" );