You walk 2 miles in 1/2 hour. at that rate, how long will it take you to walk 4 miles?

2 miles per 1/2 hour ---> 4 miles is two times 2 miles , therefore you multiply 1/2 hours by two as well and get 1 hour,

It would take you 1 hour to walk 4 hrs.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x