document.write( "Question 427997: a store mixes brazilian coffee worth $11 per kilogram and turkish coffee worth $13 kilogram. The mixture is to sell for $12 per kilogram. Find how much of each be used to make 468 kilograms mixture \n" ); document.write( "
Algebra.Com's Answer #297557 by John10(297)\"\" \"About 
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Let x be amount of Brazilian coffee and y be Turkish coffee\r
\n" ); document.write( "\n" ); document.write( "x + y = 468 (1)\r
\n" ); document.write( "\n" ); document.write( "11x + 13y = 468*12 (2)\r
\n" ); document.write( "\n" ); document.write( "Solve above system to find x and y\r
\n" ); document.write( "\n" ); document.write( "Hint: The solution is x = 234 and y = 234.\r
\n" ); document.write( "\n" ); document.write( "I recommend that you solve this system by elimination method.\r
\n" ); document.write( "\n" ); document.write( "Hope it will help you!John10
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