Question

Kenneth ran a marathon (26.2 miles) in 5.5 hours. What was Kenneth’s average speed? (Round your answer to the nearest tenth.)

Answer 1

Answer:4.8 mph on edge

Explanation: have a great day :)

Answer 2

Step-by-step explanation:

Speed: Speed can be defined as the ratio of distance to time. The S. I unit of speed is m/s. And it is expressed mathematically as,

speed = distance/time

S = d/t............................. Equation 1

Conversion: (i) If 1 miles = 1609.344 m,

then, 26.2 miles = 1609.344× 26.2

= 42164.813 m.

(i) if 1 hours = 3600 seconds,

then, 5.5 hours = 5.5×3600

=19800 seconds.

Given: d = 26.7 miles= 42164.813 m, t = 5.5 hours = 19800 seconds

Substituting these values into equation 1

S = 42164.813/19800

S = 2.1 m/s.

Therefore Kenneth's average speed = 2.1 m/s