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Vika [28.1K]
3 years ago
13

Two hikers start from the same point and hike in opposite directions around a lake whose shoreline is 15 mi long. One hiker walk

s 0.5 mph faster than the other hiker. How fast did each hiker walk if they meet in 2 h?
Mathematics
1 answer:
Llana [10]3 years ago
6 0

Answer:


Step-by-step explanation:

Let the distance the slower hiker travels=d,

the distance the faster hiker travels=15-d (Since, the sum of the distances they walk is 15mi).

Let the speed of the slower hiker in mi/hr=s,

the speed of the faster hiker=s+0.5

Now, equation for the slow hiker:

d=s(2)

d=2s                                                            (1)

and equation for the faster hiker:

15-d=(s+0.5)(2)

15-d=2s+1

2s+d=14                                                       (2)

Now, substituting the equation (1) in equation (2),

2s+2s=14

4s=14

s=3.5

and s+0.5=3.5+0.5=4.0

The speed of the slower hiker is 3.5\frac{mi}{hr}and The speed of the faster hiker is 4\frac{mi}{hr}.

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