Question

A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. Write a formula expressing the dependence of the variable s on t, where s is the distance between the bicyclist and the station in km, t - the duration (time) of his travel in hours. Using the formula, find:

Answer 1

s=18

Explanation:

First of all, the formula is s=60-12t. thanks to the person who answered this question first (teehee)

S=distance and t=duration.

We also know that the distance is 60 km, the bicyclists's speed is 12 km/h, and the duration for this example is 3.5 hours.

So, using the formula, we substitute all the variables and s=18.

Thanks!

Also, for how the formula is what it is, look at the previous answer cuz yea.

Maybe this helped?

hehe- EG

Answer 2

The bicyclist starts at the camp and travels 12 km/h. So in t hours, the bicyclist travels 12t km. The remaining distance (from the bicyclist to the station) is 60 - 12t, the whole distance, 60 km minus the distance the bicyclist has traveled.


`s=60-12t`

Now you can answer questions such as "how far was the bicyclist from the station after 3 hours?" Substitute 3 for t. s = 60 - 12(3) = 60 - 36 = 24 km.