document.write( "Question 1155962: With both the cold water and hot water faucets open, it takes 7 minutes to fill a bathtub. The cold water faucet alone takes 9 minutes to fill the tub. How long will it take to fill the tub with just the hot water faucet? \n" ); document.write( "

Algebra.Com's Answer #778668 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "With both the cold water and hot water faucets open, it takes 7 minutes to fill a bathtub. The cold water faucet alone takes 9 minutes to fill the tub. How long will it take to fill the tub with just the hot water faucet?
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Let time hot water faucet takes be H
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document.write( "Then hot water faucet does  of job in 1 minute
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document.write( "Cold water faucet takes 9 hours, and can do  of work in 1 minute
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document.write( "We then get: 
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document.write( "63 + 7H = 9H ------- Multiplying by LCD, 63H
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document.write( "63 = 2H
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document.write( "H, or time hot water faucet takes =  \n" );
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