Mrs Beck walks 3/4 of a mile in 1/6 of an hour. What is he speed?

The speed with which Mrs Beck walk is  or 4.5 miles per hour

Step-by-step explanation:

Given:

Distance =  3/4 of a mile

Time  =  1/6 of an hour.

To Find:

Speed = ?

Solution:

We know that

On substituting  the values

Speed =

Speed =  miles per hour or 4.5 miles per hour

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)