Russ walks 7
10
mile to school.
How far has he walked when he has covered
5
8
of the distance to school?

If he walks 7/10 miles to school, and you want to find 5/8 of that distance, you have to multiply the 2 fractions together. So he has walked 7/16 miles when he has covered 5/8 of the distance to school. thank me later

Step-by-step explanation:

Step 1 :-

Perpendicular condition :-

Step 1:-

Two non-vertical lines are perpendicular to each other if and only if their slopes are negative reciprocals of each other.

Step 2:-

The given points are (-8,k) and (-4,-8)

finding slope of the first line is

using formula

=  

finding slope of the second line is

using formula

=  

Step 3:-

using perpendicular condition

The two lines are perpendicular and their slopes are

simplification,we get solution is

Final answer is