document.write( "Question 721619: \r
\n" ); document.write( "\n" ); document.write( "A grocer mixes cookies worth P89 a pound with cookies worth P99 a pound making a mixture to sell at P93 a pound. If he mixes 50 pounds, how many pounds of each kind does he use?
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Algebra.Com's Answer #442454 by checkley79(3341)\"\" \"About 
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.89X+.99(50-X)=.93*50
\n" ); document.write( ".89X+49.50-.99X=46.50
\n" ); document.write( ".10X=46.50-49.50.
\n" ); document.write( ".10X=3.00
\n" ); document.write( "X=3.00/.10
\n" ); document.write( "X=30 POUNDS OF $.89 COOKIES.
\n" ); document.write( "50-30=20 POUNDS OR $.99 COOKIES.
\n" ); document.write( "PROOF:
\n" ); document.write( ".89*30+.99*20=.93*50
\n" ); document.write( "26.70+19.80=46.50
\n" ); document.write( "46.50=46.50
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