document.write( "Question 1099920: A soft drink industry wants to make orange drink with a 40% content of orange juice. It has two types of orange drink: The first contains 80% pure juice and the second 20%. How many liter to mix from the second kind with 1000 liter of the first \n" ); document.write( "
Algebra.Com's Answer #714421 by Theo(13342)\"\" \"About 
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1000 = number of liters of the first juice.
\n" ); document.write( "y = number of liters of the second juice.\r
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\n" ); document.write( "\n" ); document.write( "total number of liters of both juices = 1000 + y.\r
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\n" ); document.write( "\n" ); document.write( "first juice has 80% pure orange juice.
\n" ); document.write( "second juice has 20% pure orange juice.\r
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\n" ); document.write( "\n" ); document.write( "you want to have a combined mixture of 40% pure orange juice.\r
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\n" ); document.write( "\n" ); document.write( ".8 * 1000 + .2 * y = .4 * (1000 + y)\r
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\n" ); document.write( "\n" ); document.write( "simplify to get 800 + .2 * y = 400 + .4 * y\r
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\n" ); document.write( "\n" ); document.write( "subtract 400 from both sides of this equation and subtract .2 * y from both sides of this equation to get:\r
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\n" ); document.write( "\n" ); document.write( "400 = .2 * y\r
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\n" ); document.write( "\n" ); document.write( "divide both sides of this equation by .2 and solve for y to get:\r
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\n" ); document.write( "\n" ); document.write( "y = 400 / .2 = 2000.\r
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\n" ); document.write( "\n" ); document.write( "1000 liters of 80% pure orange juice contains 800 liters of pure orange juice.
\n" ); document.write( "2000 liters of 20% pure orange juice contains 400 liters of pure orange juice.\r
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\n" ); document.write( "\n" ); document.write( "total liters of juice is 3000
\n" ); document.write( "total liters of contained pure orange juice is 1200 liters.
\n" ); document.write( "1200 / 3000 = .4 = 40%\r
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\n" ); document.write( "\n" ); document.write( "solution is confirmed to be good.\r
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\n" ); document.write( "\n" ); document.write( "solution is 2000 liters of the second juice needs to be mixed with 1000 liters of the first juice.\r
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