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Fynjy0 [20]
3 years ago
12

The number of hours walked varies inversely with the speed of the walker. if it takes sam 12 hours to complete his walking goal

at 5 miles per hour, how long would it take him at 3 miles per hour?
Mathematics
1 answer:
Effectus [21]3 years ago
7 0
We let k be the proportionality constant for the relationship between number of hours, h and speed of the walker, s. 

                        h = k/s
Substituting the known values,
                        12 = k/5
                          k = 60

For the second scenario,
                          h = k/s
Substituting the calculated value for k and the given value for speed,
                          h = (60)(3 miles/hour)
                         h = 20 hours
                         h = 20 hours

Therefore, it will take 20 hours to walk with a speed of 3 miles per hour. 
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(1.13, 7.74) and (-4.13, 18.26)

Step-by-step explanation:

This can be solved in two ways:  mathematically and graphically.

<u>Graphing</u>

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y + 2x = 10

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