Question

Marisa and Sandy ran as far as they could in 30 minutes. Sandy ran 2.5 km farther than Marisa. They ran a total distance of 9.5 km. How far did each girl run?

Answer 1

They ran a total of 9.5 km but Sandy ran 2.5 km more than Marisa.
so to see how much Marisa ran we can subtract the extra 2.5 from 9.5 that Sandy ran
We get 7 then we divide it into two (since there were two people)
that is 3.5
to find Sandy's run, add 2.5 to 3.5
Sandy ran 6 km and Marisa ran 3.5. 
They ran that much in 30 mins. 

To check:
add 6 to 3.5
that is 9.5

Hope this helps :)

Answer 2

Sandy ran 6 km, and Marisa ran 3.5 km.

6 + 3.5 = 9.5


I really hope this helped you out! c: