Answer:
The speed with which Mrs Beck walk is [tex]\frac{9}{2}[/tex] 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
[tex]Speed = \frac{distance }{time}[/tex]
On substituting the values
[tex]Speed = \frac{\frac{3}{4}}{\frac{1}{6}}[/tex]
[tex]Speed = \frac{3}{4} \times \frac{6}{1}[/tex]
Speed = [tex]\frac{18}{4}[/tex]
Speed = [tex]\frac{9}{2}[/tex] miles per hour or 4.5 miles per hour
