document.write( "Question 1152499: eggs have 6 grams of protein and 77 calories
\n" ); document.write( "Milk has 8 grams of protein and 168 calories
\n" ); document.write( "to keep alive you must consume 36 grams of protein and 658 calories per day
\n" ); document.write( "Using Simultaneous equations how many eggs and glasses of milk must you consume each day to stay alive.
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Algebra.Com's Answer #774515 by MathLover1(20850)\"\" \"About 
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eggs have \"6+\"grams of protein and \"77\" calories:
\n" ); document.write( "milk has \"8\" grams of protein and \"168\" calories\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if the number of eggs is \"x\" and the number of glasses of milk \"y\"\r
\n" ); document.write( "\n" ); document.write( " eggs have \"6+\"grams=>\"6x\" grams of protein and \"77x\" calories
\n" ); document.write( "milk have \"8+\"grams=>\"8y\" grams of protein and \"168y\" calories
\n" ); document.write( "to keep alive you must consume \"36\" grams of protein and\"+658\" calories per day
\n" ); document.write( "\"36\" grams of protein :\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B8y=36\".............eq.1\r
\n" ); document.write( "\n" ); document.write( "\"+658\" calories :\r
\n" ); document.write( "\n" ); document.write( "\"77x%2B168y=658\"............eq.2\r
\n" ); document.write( "\n" ); document.write( "solve the system:\r
\n" ); document.write( "\n" ); document.write( "\"6x%2B8y=36\".............eq.1
\n" ); document.write( "\"77x%2B168y=658\"............eq.2
\n" ); document.write( "----------------------------------------------------------\r
\n" ); document.write( "\n" ); document.write( "start with
\n" ); document.write( "\"6x%2B8y=36\".............eq.1.....solve for \"y\"
\n" ); document.write( "\"8y=36-6x\"
\n" ); document.write( "\"y=36%2F8-6x%2F8\"
\n" ); document.write( "\"y=4.5-0.75x\"......eq.1a\r
\n" ); document.write( "\n" ); document.write( "substitute in eq.2\r
\n" ); document.write( "\n" ); document.write( "\"77x%2B168%284.5-0.75x%29=658\"............eq.2....solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"756-49x=658\"
\n" ); document.write( "\"756-658=49x\"
\n" ); document.write( "\"98=49x\"
\n" ); document.write( "\"x+=+2\"\r
\n" ); document.write( "\n" ); document.write( "go to eq.1a\r
\n" ); document.write( "\n" ); document.write( "\"y=4.5-0.75x\"......eq.1a, substitute \"2\" for \"x\" and solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"y=4.5-0.75%2A2\"
\n" ); document.write( "\"y=4.5-1.5\"
\n" ); document.write( "\"y+=+3\"\r
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\n" ); document.write( "\n" ); document.write( "you must consume \"2\" eggs and \"3\" glasses of milk each day to stay alive \r
\n" ); document.write( "\n" ); document.write( "check:calories\r
\n" ); document.write( "\n" ); document.write( "\"2%2A77%2B3%2A168=658\"
\n" ); document.write( "\"154%2B504=658\"
\n" ); document.write( "\"658=658\"\r
\n" ); document.write( "\n" ); document.write( "check: proteins\r
\n" ); document.write( "\n" ); document.write( "\"6%2A2%2B8%2A3=36\"
\n" ); document.write( "\"12%2B24=36\"
\n" ); document.write( "\"36=36\"\r
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