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Kruka [31]
2 years ago
5

A cyclist travels north along a road at a constant speed of 28 miles per hour. At 1:00 P.M., a runner is 68 miles away, running

south along the same road at a constant speed. They pass each other at 3:00 P.M.. What is the speed of the runner?
Mathematics
1 answer:
sergiy2304 [10]2 years ago
4 0

Answer:

The speed of the runner is 6 miles per hour.

Step-by-step explanation:

Given the distance between the cyclist and the runner is 68 miles.

Given the speed of the cyclist is 28 miles per hour.

Initial time is 1:00PM Final time is 3:00PM

Time elapsed is 3-1=2hours

Let the cyclist travel a distance of x miles,Then the distance travelled by the runner is 68-x miles.

speed=\frac{distance}{time}

for the cyclist

28=\frac{x}{2}

x=56 miles

the distance travelled by the runner is 68-56=12 miles

speed of the runner =  12/2 = 6 miles per hour

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2 years ago
A cyclist travels at an average speed of 18 mph for 2 hours.<br> How far did she travel in miles?
olya-2409 [2.1K]

Answer:

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3 years ago
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