document.write( "Question 49309: How many pounds of hamburger that cost $1.10 per pound must be mixed with 50 pounds of hamburger that cost $1.80 per pound to make a mixture that cost $1.30 per pound \n" ); document.write( "
Algebra.Com's Answer #32741 by atif.muhammad(135)\"\" \"About 
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document.write( "Let the number of pounds of $1.10 hamburgers be x.\r\n" );
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document.write( "Altogether, this will cost 1.10x -- Total cost of $1.10 hamburgers.\r\n" );
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document.write( "Total cost of $1.80 hamburgers --- 1.80 x 50 = 18 x 5 = $90\r\n" );
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document.write( "Total pounds of hamburgers = (x+50)\r\n" );
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document.write( "Total cost of mixture = 1.30 x (x+50) = 1.30x + 65\r\n" );
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document.write( "So this is our equation:\r\n" );
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document.write( "1.10x + 90 = 1.3x + 65\r\n" );
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document.write( "0.2x = 25\r\n" );
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document.write( "x = 125 pounds\r\n" );
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