Question

The equation for the speed/distance of a tornado is

s = 93 log(d) + 65.
If the speed is 310 mph, what is the distance?

Answer 1

430.93 miles (rounding to the nearest hundredth)

Explanation:

s = 93 log(d) + 65

310 = 93 log(d) + 65

245 = 93 log(d)

2.634408602 = log(d)

10^2.634408602 = 10^log(d)

430.9318583 = d

Therefore, if the speed of the tornado is 310 mph, then its distance is about 430.93 miles.