Grace swam 0.6 kilometers during her first week of training and 0.25 kilometers during her second week of training. How many kilometers did she swim in all?

A. 3.1 kilometers

B. 8.5 kilometers

C. 0.31 kilometers

D. 0.85 kilometers

she will cover a distance of 0.85 km.

Step-by-step explanation:

We have,

Grace swam 0.6 kilometres during her first week of training and 0.25 kilometres during her second week of training.

It is required to find total distance covered by her in all.

It can be calculated simply adding the distance covered in first and second week of training. So,

Total distance, D = 0.6 km + 0.25 km = 0.85 km

Hence, she will cover a distance of 0.85 km.