document.write( "Question 504591: I have been stuck on this word problem for forever! Please help me.
\n" ); document.write( "Army requirements call for 55 coffee grounds per quart of coffee. The cooks have one barrel of coffee with 67.5 grounds per quart in it and another barrel with 45 grounds per quart in it. How many quarts of each should they mix together to make up 1 quarts?\r
\n" ); document.write( "\n" ); document.write( "the answer is: eight quarts of the 67.5 grounds/quart and ten quarts of the 45 grounds/quart.\r
\n" ); document.write( "\n" ); document.write( "I just can't figure out how they got these answers. I've gotten a set of answers of my own that will work, but I would like to know how to get these answers.\r
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\n" ); document.write( "\n" ); document.write( "thanks
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Algebra.Com's Answer #339645 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
67.5m+45n=55(m+n)
\n" ); document.write( "67.5m+45n=55m+55n
\n" ); document.write( "12.5m=10n
\n" ); document.write( "1.25m=1n
\n" ); document.write( "m=.8n
\n" ); document.write( "For every part of 45 ground coffee, you need to use .8 parts of 67.5 ground coffee to get 55 ground coffee:
\n" ); document.write( "n+.8n=1
\n" ); document.write( "1.8n=1
\n" ); document.write( "n=1/1.8=.5556
\n" ); document.write( ".5556(45)+.4444(67.5)=25.002+29.997=54.9999.
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