Last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x

represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail.

if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail?

o x + y = 90

5x – 10y = 90

o 90 – 10y = 5x

o 90 + 10y = 5x

-2/

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that