Two mountain bikers take off from the same place at the same time. One travels north at 4 mph, and the other travels east at 3 mph. How far apart are they after 4 hr?
A) 20 mi
B) 5 mi
C) 14 mi
D) 28 mi

Question

Quizplus · Accepted Answer

The distance between the two bikers can be found using the Pythagorean theorem, as their paths form a right triangle. After 4 hours, the north-traveling biker is 4 mph * 4 hr = 16 miles away, and the east-traveling biker is 3 mph * 4 hr = 12 miles away. The distance between them is the hypotenuse of the triangle, calculated as sqrt(16^2 + 12^2) = sqrt(256 + 144) = sqrt(400) = 20 miles.

Two Mountain Bikers Take Off from the Same Place at the Same