Answer:
7x(5-4y)
Step-by-step explanation:
35x-28xy
7x(5-4y)
Find the mean of the first four test scores first.
(Add all numbers in set and divide by how many numbers there are)
81 + 87 + 71 + 89 = 328 / 4 = 82
Then, find the mean with the 85 added as the fifth term.
81 + 87 + 71 + 89 + 85 = 413 / 5 = 82.6
The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
Answer:
4x
Step-by-step explanation:
Let the number of Tina's stickers = x
So, Bob will have 4 times as many as Tina's = 4x stickers
Hope it helps you out!!
Answer:

Step-by-step explanation:
<u>The Inverse of a Function</u>
The procedure to find the inverse of the function is:
* Write the function as a two-variable equation:

* Solve the equation for x.
Multiply by 3x-1

Divide by y:

Sum 1:

Operate the right side:

Divide by 3:

* Swap the variables:

Write back into function form:
