Answer:
4
Step-by-step explanation:
Func 2 is -2
Func 3 is 1
Func 4 is 8
Func 1 is unknown
The mean from attending a review session will be the average of the numbers that are given.
<h3>What is a mean?</h3>
Your information is incomplete. Therefore, an overview will be given. Mean simply means average.
For example, if the given numbers are 2, 4, 6, and 10. The mean will be:
= (2 + 4 + 6 + 10)/4
=22/4
= 5.5
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Answer:
15%
Step-by-step explanation:
Answer:
yes, for the first
no for the second
Step-by-step explanation:
Answer fast? What?
x + 2y = 17...Equation A
8x + 3y = 45...Equation B
Solve A for x.
x = 17 - 2y
Plug this into B to solve for y.
8(17 - 2y) + 3y = 45
136 - 16y + 3y = 45
136 - 13y = 45
-13y = 45 - 136
-13y = -91
y = -91/-13
y = 91/13
y = 7
To find y, plug x = 7 into either equation to find x.
I will use Equation A.
x + 2y = 17
x + 2(7) = 17
x + 14 = 17
x = 17 - 14
x = 3
Answer: x = 3, y = 7