document.write( "Question 160634: Grain worth 65 cents per pound was mixed with grain worth 90 cents per pound to produce 20 pounds of a mixture worth 80 cents per pound. Find how many pounds of each was used \n" ); document.write( "
Algebra.Com's Answer #118445 by checkley77(12844)\"\" \"About 
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65x+90(20-x)=80*20
\n" ); document.write( "65x+1800-90x=1600
\n" ); document.write( "-25x=1600-1800
\n" ); document.write( "-25x=-200
\n" ); document.write( "x=-200/-25
\n" ); document.write( "x=8 pounds of 65 cent grain.
\n" ); document.write( "20-8=12 pounds of 90 cent grain.
\n" ); document.write( "Proof:
\n" ); document.write( "65*8+90*12=1600
\n" ); document.write( "520+1080=1600
\n" ); document.write( "1600=1600
\n" ); document.write( "
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