Answer: [tex]105.6\ \frac{yd}{min}[/tex]
Step-by-step explanation:
You need to remember the following formula for calculate the Speed:
[tex]V=\frac{d}{t}[/tex]
Where "V" is the speed, "d" is the distance and "t" is the time.
Based on the information given in the exercise, you know that:
[tex]1\ lap=440\ yd[/tex]
Then, you need to multiply 440 yards by 0.96 in order to calculate the amount of yards Francesca walked in 4 minutes This is:
[tex]distance\ walked\ in\ 4\ minutes=(440\ yd)(0.96)=422.4\ yd[/tex]
Then, you can identify that:
[tex]d=422.4\ yd\\t=4\ min[/tex]
FInally, ubstituting these values into the formula, you get:
[tex]V=\frac{422.4\ yd}{4\ min}\\\\V=105.6\ \frac{yd}{min}[/tex]
