Brian ran a 5-kilometer race in 40 minutes. How far did he run in 18 minutes? Write your answer as a decimal and do not round.(1 point)

Answer 1

To find out how far Brian ran in 18 minutes, we can set up a proportion using the time and distance.

The proportion is:
5 kilometers / 40 minutes = X kilometers / 18 minutes

To solve for X, we can cross multiply and then divide:

40X = 5 * 18
40X = 90

Dividing both sides by 40, we get:
X = 90 / 40

Simplifying the fraction on the right, we get:
X = 2.25 kilometers

Therefore, Brian ran 2.25 kilometers in 18 minutes.