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\ (yd)/(min)`

Explanation:

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

`V=(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=(422.4\ yd)/(4\ min)\\\\V=105.6\ (yd)/(min)`