document.write( "Question 711555: \r
\n" ); document.write( "\n" ); document.write( "a dairy farmer has two types of milk. How many gallons of a 2% milk fat solution and how many gallons of a 4.5% milk fat solution should be mixed to obtain 500 gallons of a 2.9% milk fat solution
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Algebra.Com's Answer #437514 by checkley79(3341)\"\" \"About 
You can put this solution on YOUR website!
.045X+.02(500-X)=.029*500
\n" ); document.write( ".045X+10-.02X=14.5
\n" ); document.write( ".025X=14.5-10
\n" ); document.write( ".025X=4.5
\n" ); document.write( "X=4.5/.025
\n" ); document.write( "X=180 GALLONS OF 4.5% IS USED.
\n" ); document.write( "500-180=320 GALLONS OF 2% IS USED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".045*180+.02*320=.029*500
\n" ); document.write( "8.1+6.4=14.5
\n" ); document.write( "14.5=14.5
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