document.write( "Question 511153: To determine the number
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document.write( "of ounces of fluid that a person should drink in a
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document.write( "day, divide his or her weight in pounds by 2 and then
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document.write( "add 0.4 ounce for every minute of exercise.
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document.write( "(a) Write a function that gives the fluid requirements
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document.write( "for a person weighing 150 pounds and exercising
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document.write( "x minutes a day.\r
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document.write( "(b) If a 150-pound runner needs 89 ounces of fluid
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document.write( "each day, determine the runner’s daily minutes of
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document.write( "exercise.
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Algebra.Com's Answer #342038 by John10(297)![]() ![]() You can put this solution on YOUR website! a) Let x be the number of daily minutes and f(x) is the function (number of ounces of fluid):\r \n" ); document.write( "\n" ); document.write( "f(x) = w/2 + 0.4x where w is the weight.\r \n" ); document.write( "\n" ); document.write( "If w = 150 lbs then \r \n" ); document.write( "\n" ); document.write( "f(x) = 150/2 + 0.4x = 75 + 0.4x\r \n" ); document.write( "\n" ); document.write( "b) If the f(x) = 89 oz\r \n" ); document.write( "\n" ); document.write( "0.4x + 75 = 89 \n" ); document.write( "0.4x = 89 - 75 \n" ); document.write( "0.4x = 14 \n" ); document.write( "x = 14/0.4 \n" ); document.write( "x = 35 oz of fluid \n" ); document.write( "John10:) \n" ); document.write( " |