It takes Luke 1 hr and 45 mins to run 14 miles. What is his average speed?

1 Answer
Junaid Mirza
Jun 7, 2018

"8 mph"

Explanation:

Time taken by Luke is

t = "1 hr + 45 min"

color(white)(t) = "1 hr" + [45 cancel"min" × "1 hr"/(60 cancel"min")]

color(white)(t) = "1 hr + 0.75 hr"

color(white)(t) = "1.75 hr"

Average speed= "Total distance"/"Total time" = "14 miles"/"1.75 hr" = "8 mph"

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