Answer:
The average speed is:
![\var{v}=75\: miles/h](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D75%5C%3A%20miles%2Fh)
Step-by-step explanation:
The average speed equation is given by:
![\var{v}=\frac{\Delta x}{\Delta t}](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D%5Cfrac%7B%5CDelta%20x%7D%7B%5CDelta%20t%7D)
Were:
- Δx is the displacement (225 miles)
- Δt is the change in time (3 hours)
Then we have:
![\var{v}=\frac{225}{3}](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D%5Cfrac%7B225%7D%7B3%7D)
![\var{v}=75\: miles/h](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D75%5C%3A%20miles%2Fh)
I hope it helps you!
Answer:
z = 11
Explanation:
5y + 13 = 6y
Subtract 5y by both sides.
13 = y
Next,
z + 22 = 3z
Subtract z by both sides.
22 = 2z
Then, divide both sides by 2.
11 = z
Finally plug those answers into the equations.
5(13) + 13 = 78
6(13) = 78
(11) + 22 = 33
3(11) = 33
So △DEF ≅ △JKI because the value of z = 11.
The direct variation equation is:
d=kt
where d is the distance that the giraffe travels
k is the constant of variation
and t is time
Now we are told that the giraffe can travel 800 ft in 20 seconds, so we can solve for the constant of variation (k)
800=k(20) divide both sides by 20
k=40-------------and the units are ft per sec
So now we can write
d=40t
ck
d=40t
800ft=40*20 ft
800 ft= 800 ft
Hope this helps!
Answer:
fishsticks
Step-by-step explanation:
Answer:
A, B, E
Step-by-step explanation: