Given:
Chang ran three times last week. The distances he ran (in kilometers) are 4, 8.36, 18.9.
To find:
The total distance Chang ran on these three days.
Solution:
It is given that the distances he ran (in kilometers) are 4, 8.36, 18.9.
We need to add these three distances to get the total distance Chang ran on these three days.
[tex]4+8.36+18.9=31.26[/tex]
Therefore, the total distance Chang ran on these three days is 31.26 kilometers.