document.write( "Question 146120: Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with it's no-fat yogurt to obtain low fat yogurt that is 1% fat. How many pounds of regular yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pounds of low fat yogurt? \n" ); document.write( "
Algebra.Com's Answer #106666 by josmiceli(19441)\"\" \"About 
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In words:
\n" ); document.write( "(pounds of fat)/(total pounds) = 1%
\n" ); document.write( "Let \"n\"= pounds of no-fat yogurt to be added
\n" ); document.write( "Let \"r\"= pounds of 3% fat yogurt to be added
\n" ); document.write( "It is given that
\n" ); document.write( "\"n+%2B+r+=+60\"
\n" ); document.write( "also
\n" ); document.write( "\".03r%2F60+=+.01\"
\n" ); document.write( "\".03r+=++.6\"
\n" ); document.write( "\"r+=+20\"
\n" ); document.write( "\"n+%2B+r+=+60\"
\n" ); document.write( "\"n+=+40\"
\n" ); document.write( "20 pounds of regular yogurt and 40 pounds of no-fat yogurt should be
\n" ); document.write( "mixed to obtain 60 pounds of low fat yogurt.
\n" ); document.write( "check answer:
\n" ); document.write( "\".03r%2F60+=+.01\"
\n" ); document.write( "\".03%2A20%2F60+=+.01\"
\n" ); document.write( "\".03%2A20+=+.6\"
\n" ); document.write( "\".6+=+.6\"
\n" ); document.write( "OK
\n" ); document.write( "
\n" );