Question

Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 kilometers per hour. How far apart were they after one hour? Round the answer to the nearest tenth.

Answer 1

This question requires you to use Pythagoras theorem - a^2 + b^2 = c^2
Therefore we can work it out like this:
c^2 = 11^2 + 7^2
= 121 + 49
= 170
c = 13.038km
Hope this helps