document.write( "Question 225710: The owner of a pet food store wants to mix birdseed that costs $1.25 per pound with sunflower seeds that cost $0.75 per pound to make 50 pounds of a mixture that costs $1.00 per pound. HOw many pounds of each seed should he use? \n" ); document.write( "
Algebra.Com's Answer #168320 by checkley77(12844)\"\" \"About 
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1.25X+.75(50-X)=50*1
\n" ); document.write( "1.25X+37.5-.75X=50
\n" ); document.write( ".50X=50-37.5
\n" ); document.write( ".50X=12.5
\n" ); document.write( "X=12.5/.5
\n" ); document.write( "X=25 POUNDS OF $1.25 BIRDSEED IS USED.
\n" ); document.write( "50-25=25 POUNDS OF $.75 SUNFLOWER SEED IS UDED.
\n" ); document.write( "PROOF:
\n" ); document.write( "1.25*25+.75*25=50
\n" ); document.write( "31.25+18.75=50
\n" ); document.write( "50=50
\n" ); document.write( "
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