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

it's both, now can you answer my most recent question?

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.