Question

Mariah is training for a 25.3 kilometer triathlon. She ran 6.4 kilometers, swam 1.7 kilometers, and hiked 16.3 kilometers in one day. How many more kilometers does she need to finish the total distance of 25.3?

Option 1: 0.9 kilometers
Option 2: 1.9 kilometers
Option 3: 2.9 kilometers
Option 4: 3.9 kilometers

Answer 1

Mariah needs to run 0.9 kilometers more to finish the triathlon.

Step-by-step explanation:

To find out how many more kilometers Mariah needs to finish the total distance of 25.3 kilometers, we need to add up the distances she has already covered and subtract it from 25.3 kilometers.

So, the total distance she has covered so far is 6.4 kilometers + 1.7 kilometers + 16.3 kilometers = 24.4 kilometers.

To find out how many more kilometers she needs to finish, we can subtract this from the total distance: 25.3 kilometers - 24.4 kilometers = 0.9 kilometers.

Therefore, Mariah needs to run 0.9 kilometers more to finish the triathlon.