So to get the mean, you need to work out the sum of the values and divide it by the number of values there are.
This means you should do:
(Let x represent the fifth score)
(92 + 85 + 90 + 92 + x) / 5 = 90
(92 + 85 + 90 + 92 + x) = 450
359 + x = 450
x = 450 - 359
x = 91
So the answer is 91 and you are correct :)
Given:
The area of a rectangle = 14 square units.
The side lengths are a and b.

To find:
The value of b.
Solution:
We know that, the area of a rectangle is:

The area of the given rectangle is:




On further simplification, we get



Divide both sides by 7.


Therefore, the value of b is 6 units.
< is the answer. Hope this helps!
Answer
the least common is 21
3x7=21 7x3=21
1/3=7/21
5/7= 15/21
hope this helps and have a wonderful day :)
It’s just step by step it’s just step by step explanation