Question

A bicyclist traveled with a speed of 12 km/h from a camping ground to a station, located 60 km away. The formula expressing the dependence of the variable d on t, where d is the distance between the bicyclist and the station in km and t is the time traveled in hours, is:

d = 60 - 12t

Using the formula, find d for t = 3.5.

A) 10 km
B) 24 km
C) 36 km
D) 42 km

Answer 1

The formula expressing the dependence of the distance on time is d = 60 - 12t. Substituting t = 3.5 into the formula yields d = 18 km.

Step-by-step explanation:

The formula expressing the dependence of the variable d on t, where d is the distance between the bicyclist and the station in km and t is the time traveled in hours, is:

d = 60 - 12t

To find d for t = 3.5, we can substitute t = 3.5 into the formula:

d = 60 - 12(3.5)

Simplifying the equation, we get:

d = 60 - 42 = 18 km

Therefore, the answer is 18 km (Option E)