Respuesta :

Answer:

0.65 miles.

Step-by-step explanation:

Dmitry runs 3.1 miles on Saturday.

He runs 2.45 miles on Sunday.

On Saturday he runs 3.1 - 2.45 = 0.65 miles farther.

He ran .65 miles less, 3.1 - 2.45, so 2.45 minus .65 is 1.8 miles. He runs 1.8 miles on Sunday.