document.write( "Question 161644: A butcher has two grades of ground meat. A low grade meat costs $1.50 per pound and a higher grade of meat which costs $4.00 per pound. How many pounds of each grade of meat should he mix together to get 25 pounds of meat costing $3.00 per pound? \n" ); document.write( "
Algebra.Com's Answer #119099 by checkley77(12844)\"\" \"About 
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4X+1.5(25-X)=3*25
\n" ); document.write( "4X+37.5-1.5X=75
\n" ); document.write( "2.5X=75-37.5
\n" ); document.write( "2.5X=37.5
\n" ); document.write( "X=37.5/2.5
\n" ); document.write( "X=15 POUNDS OF $4 MEAT IS USED.
\n" ); document.write( "25-15=10 POUNDS OF $1.50 MEAT IS USED.
\n" ); document.write( "PROOF:
\n" ); document.write( "4*15+1.5*10=3*75
\n" ); document.write( "60+15=75
\n" ); document.write( "75=75
\n" ); document.write( "
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