Answer:
88
Step-by-step explanation:
![\frac{86 + 94 + 88 + 95 + 89 + x}{6} = 90](https://tex.z-dn.net/?f=%20%5Cfrac%7B86%20%2B%2094%20%2B%2088%20%2B%2095%20%2B%2089%20%2B%20x%7D%7B6%7D%20%20%3D%2090)
The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.
Solve for x:
![86 + 94 + 88 + 95 + 89 + x = 540](https://tex.z-dn.net/?f=86%20%2B%2094%20%2B%2088%20%2B%2095%20%2B%2089%20%2B%20x%20%3D%20540)
![452 + x = 540](https://tex.z-dn.net/?f=452%20%2B%20x%20%3D%20540)
![x = 88](https://tex.z-dn.net/?f=x%20%3D%2088)
Thus, Allen needs at least an 88 to obtain a mean of at least 90.
Given:
Length of the cuboid tank = 4 m
Breadth = 2.5 m
Height = 2.4 m
One third of the tank is filled with water.
1 cubic meter = 1000 liters.
To find:
The quantity of the water in the tank.
Solution:
Volume of a cuboid is:
![V=l\times b\times h](https://tex.z-dn.net/?f=V%3Dl%5Ctimes%20b%5Ctimes%20h)
Where, l is length, b is breadth and h is the height.
The volume of the tank is :
![V=4\times 2.5\times 2.4](https://tex.z-dn.net/?f=V%3D4%5Ctimes%202.5%5Ctimes%202.4)
![V=24](https://tex.z-dn.net/?f=V%3D24)
Volume of tank is 24 cubic meter.
One third of the tank is filled with water. So, the volume of the water is
![\dfrac{24}{3}=8](https://tex.z-dn.net/?f=%5Cdfrac%7B24%7D%7B3%7D%3D8)
The volume of water is 8 cubic meters.
We have,
1 cubic meter = 1000 liters.
8 cubic meter = 8000 liters.
Therefore, the quantity of the water in the tank is 8000 liters.
From my thinking don’t use this one because I’m not really answering 5-2=3=3
Answer:
59
Step-by-step explanation:
5au+24av-5bu-30bv
rearrange it
5au+5bu-24av-30bv
similar letter cross each other
5a+5b-24a-30b
rearrange it
5a+24a-5b-30b
similar letter cross each other
5+24-5-30
29- -30=59
-and - = +
Answer:
8x^{4}-2/3x^{2}-2/3x
Step-by-step explanation: