Asked by Olivia

A runner is 22 km east and 15 km south of his starting point. How far is he in a direct line from his starting point?
Answered by Steve
√(22^2 + 15^2) = √709 = 26.627 km
Answered by Olivia
Thank you so much ! :D
Answered by Olivia
Btw related to the question I asked: how long would it take him to return to his starting point in a direct line if he can run at 10 km per hour?
Answered by Steve
time = distance/speed, so 2.6627 hr
I assume that's what you got, eh?
Answered by Olivia
So I just round it ? Yep thanks
Answered by Olivia
I got 2 hrs and 40 mins approximately right?
Answered by Olivia
Yes Steve I did @ first get 2.66 can u help me?
Answered by Steve
Looks good to me.
.6666 = 2/3, and 40 min is 2/3 hour.
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