Answer:
A, slope
I am pretty sure it is the slope
Answer:
11x
Step-by-step explanation:
Substitute the values in the expression
2(-4) - (-5)
-8 + 5
-3
Times oth sides by 100
100d=r(100-x)
divide both sides by (100-x)
![\frac{100D}{100-x}=r](https://tex.z-dn.net/?f=%20%5Cfrac%7B100D%7D%7B100-x%7D%3Dr%20)
It takes 40 minutes more going up or 40/60 = 0.67 hours
more.
Let us say that:
t = the time required for him running down
t + 0.67 = time required for him running up
Since the distance of running up and down must be equal
therefore:
(3 miles / hr) * (t + 0.67) = (5 miles / h) * t
3 t + 2.01 = 5 t
2 t = 2.01
t = 1.005 hr
So the total length of the hike is:
length = 2 * (5 miles / hr) * (1.005 hr)
<span>length = 10.05 miles</span>