Answer:
c
Step-by-step explanation:
There is 6 students in the 8hr zone.
Gosh, do I have to explain? A is a, c is c!
4+6+6+6.5+6.5+6.5+6.5+7+7+7+7+7.5+7.5+7.5+8+8+8+8+8+8.5=141.
141÷20=7.05. So, no, it is not b.
We have been given that Jackson purchases a new car for $48,000. The car's value can be modeled by the following exponential function:
where y represents the car's value and t represents time in years. We are asked to find the decay rate as a percentage.
We know that an exponential decay function is in form
, where,
y = Final value,
a = Initial value,
r = Decay rate in decimal form,
x = time.
Upon comparing our given function
with standard decay function
, we can see that
.
Let us solve for r.
![1-1-r=0.76-1](https://tex.z-dn.net/?f=1-1-r%3D0.76-1)
![-r=-0.24](https://tex.z-dn.net/?f=-r%3D-0.24)
![r=0.24](https://tex.z-dn.net/?f=r%3D0.24)
Let us convert 0.24 into percentage.
![0.24\times 100\%=24\%](https://tex.z-dn.net/?f=0.24%5Ctimes%20100%5C%25%3D24%5C%25)
Therefore, the decay rate is 24%.
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