Answer:
1970.5 thousand
Step-by-step explanation:
Given
Vehicle sales in 2009 = 10,002 thousand
Vehicle sales in 2013 = 17,884 thousand
Required
Determine the average rate of change;
From the given parameters, it can be seen that the number of vehicles is a function of year
Let x represent the years and y represent the number of vehicles;
Such that;
![x_1 = 2009;\ y_1 = 10,002](https://tex.z-dn.net/?f=x_1%20%3D%202009%3B%5C%20y_1%20%3D%2010%2C002)
![x_2 = 2013;\ y_2 = 17,884](https://tex.z-dn.net/?f=x_2%20%3D%202013%3B%5C%20y_2%20%3D%2017%2C884)
The rate of change is calculate as follows;
![m = \frac{y_1 - y_2}{x_1 - x_2}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By_1%20-%20y_2%7D%7Bx_1%20-%20x_2%7D)
![m = \frac{10002 - 17884}{2009 - 2013}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B10002%20-%2017884%7D%7B2009%20-%202013%7D)
![m = \frac{-7882}{-4}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B-7882%7D%7B-4%7D)
![m = \frac{-7882}{-4}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B-7882%7D%7B-4%7D)
![m = 1970.5](https://tex.z-dn.net/?f=m%20%3D%201970.5)
Hence, the average rate of change is 1970.5 thousand
Answer:
its fifteen fiths
Step-by-step explanation:
There are 153 people who each ate 1/4 pounds. Therefore, the amount of watermelon eaten is 153/4 pounds.
The amount of watermelon served is
![8 \frac{1}{4} + 9 \frac{1}{4} + 8 \frac{7}{8} + 9 \frac{5}{8} + 10 \frac{3}{4}](https://tex.z-dn.net/?f=8%20%5Cfrac%7B1%7D%7B4%7D%20%20%2B%209%20%5Cfrac%7B1%7D%7B4%7D%20%20%2B%208%20%5Cfrac%7B7%7D%7B8%7D%20%20%2B%209%20%5Cfrac%7B5%7D%7B8%7D%20%20%2B%2010%20%5Cfrac%7B3%7D%7B4%7D)
![= \frac{8 \times 4 + 1}{4} + \frac{9 \times 4 + 1}{4} \\ + \frac{8 \times 8 + 7}{8} + \frac{9 \times 8 + 5}{8} \\ + \frac{10 \times 4 + 3}{4}](https://tex.z-dn.net/?f=%3D%20%20%5Cfrac%7B8%20%5Ctimes%204%20%2B%201%7D%7B4%7D%20%20%2B%20%20%5Cfrac%7B9%20%5Ctimes%204%20%2B%201%7D%7B4%7D%20%20%5C%5C%20%20%2B%20%20%5Cfrac%7B8%20%5Ctimes%208%20%2B%207%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B9%20%5Ctimes%208%20%2B%205%7D%7B8%7D%20%5C%5C%20%20%2B%20%20%5Cfrac%7B10%20%5Ctimes%204%20%2B%203%7D%7B4%7D%20)
![= \frac{33}{4} + \frac{37}{4} + \frac{71}{8} + \frac{77}{8} + \frac{43}{4} \\ = \frac{33 \times 2}{4 \times 2} + \frac{37 \times 2}{4 \times 2} + \frac{71}{8} \\ + \frac{77}{8} + \frac{43 \times 2}{4 \times 2}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B33%7D%7B4%7D%20%20%2B%20%20%5Cfrac%7B37%7D%7B4%7D%20%20%2B%20%20%5Cfrac%7B71%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B77%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B43%7D%7B4%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B33%20%5Ctimes%202%7D%7B4%20%5Ctimes%202%7D%20%20%2B%20%20%5Cfrac%7B37%20%5Ctimes%202%7D%7B4%20%5Ctimes%202%7D%20%20%2B%20%20%5Cfrac%7B71%7D%7B8%7D%20%20%5C%5C%20%20%2B%20%20%5Cfrac%7B77%7D%7B8%7D%20%20%2B%20%20%5Cfrac%7B43%20%5Ctimes%202%7D%7B4%20%5Ctimes%202%7D%20)
![= \frac{66 + 74 + 71 + 77 + 86}{8}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B66%20%2B%2074%20%2B%2071%20%2B%2077%20%2B%2086%7D%7B8%7D%20)
![= \frac{374}{8} = \frac{186}{4}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B374%7D%7B8%7D%20%20%3D%20%20%5Cfrac%7B186%7D%7B4%7D%20%20)
There is 186/4 total watermelon. Minus the 153/4 that was eaten,
![\frac{186 - 153}{4} = \frac{33}{4} = 8 \frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B186%20-%20153%7D%7B4%7D%20%20%3D%20%20%5Cfrac%7B33%7D%7B4%7D%20%20%3D%208%20%5Cfrac%7B1%7D%7B4%7D%20)
The leftover watermelon is 8 & 1/4 pounds.