Question

The diaz family is cross country skiing the big tree trails, which have a total length of 4 miles. yesterday they skied the 7/10 mile oak trail. today they skied the 3/5 mile pine trail. if they plan to ski all of the big tree trails, jow many miles do they have left to ski?

Answer 1

7/10 + 3/5 + x = 4
7/10 + 6/10 + x = 4
13/10 + x = 4
x = 4 - 13/10
x = 40/10 - 13/10
x = 27/10 which equals 2 7/10 more miles to go.

Answer 2

2 7/10 is the answer hope I helped