Answer:
No he didnot
Step-by-step explanation:
Average= Sum/Number
=72+89+92=253
=253/3
<h3> =84.3% which is less than 85 %</h3>
The answer could be c or a
Answer:
Im not fully sure but I think it is negative 2 and negative 3
Answer:
8 hours
Step-by-step explanation:
14 + 3x =38
-14 -14
--------------------
3x = 24
---- ----
3 3
--------------------
x = 8
The expressions D, E, and F represent a correct solution to the equation.
Step-by-step explanation:
Step 1:
First, we need to solve the given equation and find the value of x which satisfies the equation.
![6(x+4)=20, (x+4) = \frac{20}{6} = 3.333,](https://tex.z-dn.net/?f=6%28x%2B4%29%3D20%2C%20%28x%2B4%29%20%3D%20%5Cfrac%7B20%7D%7B6%7D%20%20%20%3D%203.333%2C)
![x = 3.333 - 4 = -0.666.](https://tex.z-dn.net/?f=x%20%3D%203.333%20-%204%20%3D%20-0.666.)
So the value of x for the given equation is -0.666.
Step 2:
Now we evaluate the values of the six given options to see which ones have an x value of -0.666.
A. ![\frac{20-4}{6}= \frac{16}{6} = 2.666,](https://tex.z-dn.net/?f=%5Cfrac%7B20-4%7D%7B6%7D%3D%20%5Cfrac%7B16%7D%7B6%7D%20%20%3D%202.666%2C)
B. ![\frac{1}{6} (20-4)= \frac{1}{6} (16)=\frac{16}{6} = 2.666,](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B6%7D%20%2820-4%29%3D%20%5Cfrac%7B1%7D%7B6%7D%20%2816%29%3D%5Cfrac%7B16%7D%7B6%7D%20%3D%202.666%2C)
C. 20 -6 -4 = 20 - 10 = 10.
D. ![\frac{20}{6} -4= 3.333 - 4 = -0.666,](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B6%7D%20-4%3D%203.333%20-%204%20%3D%20-0.666%2C)
E. ![\frac{1}{6} (20-24) = \frac{1}{6} (-4)= -0.666,](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B6%7D%20%2820-24%29%20%3D%20%5Cfrac%7B1%7D%7B6%7D%20%28-4%29%3D%20-0.666%2C)
F. ![(20-24)\frac{1}{6} = (-4)\frac{1}{6} = -0.666.](https://tex.z-dn.net/?f=%2820-24%29%5Cfrac%7B1%7D%7B6%7D%20%3D%20%28-4%29%5Cfrac%7B1%7D%7B6%7D%20%3D%20-0.666.)
So the options D, E, and F represent a correct solution to the given equation.