
Callie H. answered 08/22/19
National Board Certified Teacher can help you/your child in all areas
First, you need to determine how many feet are in a mile. The answer is 5280. So in 15 minutes, you go 5280 x 3 feet = 15,840 feet.
Now you set up a ratio. You are putting minutes on the top and feet on the bottom.15 minutes over 15,840 feet equals 3 minutes over f feet.
15/15840 = 3/f.
Now you cross-multiply. 15 x f = 15f
15840 x 3 = 47520
15f = 47520.
Now you divide both sides by 15 to get the f by itself. 15f / 15 = f
47520 / 15 = 3168.
In 3 minutes you would go 3168 feet.