Question

For exercise, Francesca walks laps around a track. She walked 0.96 of a lap around the track in 4 minutes. If each lap is 440 yards, how fast did Francesca walk?

Answer 1

Answer: $105.6\ \frac{yd}{min}$

Step-by-step explanation:

You need to remember the following formula for calculate the Speed:

$V=\frac{d}{t}$

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:

 $1\ lap=440\ yd$

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:

$distance\ walked\ in\ 4\ minutes=(440\ yd)(0.96)=422.4\ yd$

Then, you can identify that:

$d=422.4\ yd\\t=4\ min$

FInally, ubstituting these values into the formula, you get:

 $V=\frac{422.4\ yd}{4\ min}\\\\V=105.6\ \frac{yd}{min}$