Question

If 1 ft = 1.894 x 10​ -4​miles, convert 20.0 inches to miles

Answer 1

3.1567 * 10^-4 miles

Explanation:

1 ft = 1.894 * 10^-4 miles , so

1 inch = 1.894 * 10^-4 / 12 miles

= 0.15783 * 10^-4

= 1.5783* 10^-5 miles ( in scientific form).

Multiplying this by 20 we get

31.567 * 10^-5

= 3.1567 * 10^-4 miles.