document.write( "Question 836704: A glass of skim milk supplies 0.3 mg of iron and 8.5 g of protein. A quarter pound of lean red meat provides 3.75 mg of iron and 23 g of protein. If a person on a special diet is to have 7.17 mg of iron and 71 g of protein, how many glasses of skim milk and how many quarter-pound servings of meat would provide this? (Round your answers to 2 decimal places) \n" ); document.write( "

Algebra.Com's Answer #504343 by josgarithmetic(39617) $\"\"$ $\"About$

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x = glasses of skim milk
\n" ); document.write( "y = servings of meat
\n" ); document.write( "1 serving meat is 0.25 pounds meat\r
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\n" ); document.write( "\n" ); document.write( "The sum x+y has no clear useful meaning in this problem as described.\r
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\n" ); document.write( "\n" ); document.write( "Account for the iron: $\"0.3%2Ax%2B3.75%2Ay=7.17\"$ , and you should examine the arrangement of the numbers very carefully to see how the left and right members are milligrams of iron.\r
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\n" ); document.write( "\n" ); document.write( "Account for the protein: $\"8.5x%2B23y=71\"$ \r
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\n" ); document.write( "\n" ); document.write( "Those two equations are your linear system. Solve for x and y.
\n" ); document.write( "Tell if you further trouble with this. \n" ); document.write( "

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