document.write( "Question 295581: I need help with this problem please.\r
\n" ); document.write( "\n" ); document.write( "Write a system of two equations in two unknowns for each problem. Solve each system by the method of your choice.
\n" ); document.write( "Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with its 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?
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Algebra.Com's Answer #213005 by mananth(16946)\"\" \"About 
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Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with its 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? \r
\n" ); document.write( "\n" ); document.write( "Let the regular fat yogurt to be added be x lbs.\r
\n" ); document.write( "\n" ); document.write( "The no fat yogurt to be added will be 60-x lbs\r
\n" ); document.write( "\n" ); document.write( "3%fat means 97% of it has no fat\r
\n" ); document.write( "\n" ); document.write( "0% fat means 100% of it is not fat\r
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\n" ); document.write( "\n" ); document.write( "0.97x +1(60-x)=0.99*60\r
\n" ); document.write( "\n" ); document.write( "0.97x+60-x=59.4\r
\n" ); document.write( "\n" ); document.write( "-0.03x =-0.6\r
\n" ); document.write( "\n" ); document.write( "x=-0.6/-0.03\r
\n" ); document.write( "\n" ); document.write( "x=20 lbs. regular fat yugurt\r
\n" ); document.write( "\n" ); document.write( "balance 40 lbs 0% yogurt \r
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