document.write( "Question 905836: Bucks grass seed sells for $2.45 per pound and jacks grass seed sells for $2.10 per pound. How many pounds of each should be mixed to get a 10 pound mixture that sells for $2.20 per pound? \n" ); document.write( "
Algebra.Com's Answer #549549 by richwmiller(17219)\"\" \"About 
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a+b=10,
\n" ); document.write( "2.45*a+2.10*b=2.20*10
\n" ); document.write( "a=10-b
\n" ); document.write( "2.45*(10-b)+2.1*b=22.0
\n" ); document.write( "24.5-2.45b+2.1*b=22.0
\n" ); document.write( "-0.35*b=-2.5
\n" ); document.write( "b=7.14285714
\n" ); document.write( "a=10-b
\n" ); document.write( "a=2.85714286 lb. at $2.45 b=7.14285714 lb. at $2.10
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\n" ); document.write( "2.45*2.85714286+2.1*7.14285714=2.2*10
\n" ); document.write( "7.0+15.0=22.0
\n" ); document.write( "22.0=22.0
\n" ); document.write( "ok
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