A= 0.25 or 1/4
Hope this helps:)
Answer:

Step-by-step explanation:
Hello There!
If you didn't know vertical angles are congruent
That being said we can use this equation to solve for x
40 = 5x
Objective: Isolate the variable using inverse operations
To get rid of the 5 we divide each side by 5
40 / 5= 8
5x/5=x
we're left with x=8
To check our answer we can plug in 8 to x and if it equal 40 then the answer is correct
5(8) = 40
So the answer would be 8
Answer:

Step-by-step explanation:
Let
represent the length of the rectangle. The width can be represented as
.
The perimeter of a rectangle with lengths
and
is given by
.
Thus, we have:

The width is then
.
The answer is D. 90 miles. You can figure this out by multiplying 15 by 6, as Celia hiked 15 miles every day for 6 days, so 15, 6 times, and 15 x 6 = 90.