document.write( "Question 250120: This problem says soybean meal is 16% protein, cornmeal is 8% protein. How many poundsof each should be mixed together in order to get 320-lb. mixture that is 10% protein.
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document.write( "How many pounds of cornmeal ?
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document.write( "How many pounds of soybean meal?
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document.write( "Im so totally lost please help. thanks \n" );
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Algebra.Com's Answer #182301 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! This problem says soybean meal is 16% protein, cornmeal is 8% protein. \n" ); document.write( " How many pounds of each should be mixed together in order to get 320-lb. mixture that is 10% protein. \n" ); document.write( "; \n" ); document.write( "How many pounds of cornmeal ? \n" ); document.write( "How many pounds of soybean meal? \n" ); document.write( ": \n" ); document.write( "Let x = amt of soy which is 16% protein \n" ); document.write( "The total mixture is given as 320 lb, therefore \n" ); document.write( "(320-x) = amt of cornmeal which is 8% \n" ); document.write( ": \n" ); document.write( "Using the decimal equiv we have: \n" ); document.write( ".16x + .08(320-x) = .10(320) \n" ); document.write( ": \n" ); document.write( "Multiply what's inside the brackets \n" ); document.write( ".16x + 25.6 - .08x = 32 \n" ); document.write( ": \n" ); document.write( ".16x - .08x = 32 - 25.6 \n" ); document.write( ": \n" ); document.write( ".08x = 6.4 \n" ); document.write( "x = \n" ); document.write( "x = 80 lb of soy \n" ); document.write( "then \n" ); document.write( "320 - 80 = 240 lb of corn meal required \n" ); document.write( "; \n" ); document.write( "; \n" ); document.write( "Check solutions in original equation \n" ); document.write( ".16(80) + .08(240) = .10(320) \n" ); document.write( "12.8 + 19.2 = 32; confirms our solutions \n" ); document.write( ": \n" ); document.write( "Has this helped you find your way through the \"mixture problem\" forest? \n" ); document.write( "If you learn this method, you can do most of these kind of problems. \n" ); document.write( " |