Question
Asked Nov 5, 2019
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Left on together, the cold and hot water faucets of a certain bathtub take 7 minutes to fill the tub.If it takes the cold water faucet 17 minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on it's own? Do not do any rounding.

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Expert Answer

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Step 1

Given,Left on together, the cold and hot water faucets of a certain bathtub take 7 minutes to fill the tub and it takes the cold water faucet 17 minutes to fill the tub by itself.

Step 2

Let the full bathtub = 1 and let t be the time required to fill the bathtub by hot faucet.

Then the corresponding equation for the given data is,

7
+=1
17 t
7
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Image Transcriptionclose

7 +=1 17 t 7

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Step 3

On simplificatio...

7t119
=1
17t
7t119 17t
17t-7t 119
10t 119
t11.9 min
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Image Transcriptionclose

7t119 =1 17t 7t119 17t 17t-7t 119 10t 119 t11.9 min

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Math

Algebra