document.write( "Question 998476: A chef is using a mixture of two brands of Italian dressing. The first brand contains 5% vinegar and the second brand contains 10% vinegar. The chef wants to make 200mL of a dressing that is 8% vinegar. How much of each brand should the chef use? \n" ); document.write( "

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\n" ); document.write( "A chef is using a mixture of two brands of Italian dressing. The first brand contains 5% vinegar and the second brand contains 10% vinegar. The chef wants to make 200mL of a dressing that is 8% vinegar. How much of each brand should the chef use?
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Let amount of 5% vinegar to mix, be F
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document.write( "Then amount of 10% vinegar to mix = 200 - F
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document.write( "We then get: .05F + .1(200 - F) = .08(200)
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document.write( ".05F + 20 - .1F = 16
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document.write( ".05F - .1F = 16 - 20
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document.write( "- .05F = - 4
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document.write( "F, or amount of 5% vinegar to mix = , or  mL
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document.write( "You should be able to find amount of 10% vinegar that needs to be mixed \n" );
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