The time needed for a 15 miles long hike depends on the average speed of the hiker. Write the formula that describes this time as the function of the average speed.

Answer:

If the average speed is v, then the time t=

15/v

Step-by-step explanation:

Spped, v is the distance moved per unit time hence expressed as

V=d/t

Normally, speed is given in miles per hour, km per hour, m/s etc hence the unit of time also varies.

Making t the subject of formula then t=d/v

Given d to be 15 miles then t=15/v

This is the the function of the average speed