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.

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

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step-by-step explanation:

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