Answer:
16
Step-by-step explanation:
The mean of a group of values is calculated as
mean = 
Given 5 numbers with a mean of 12, then
= 12 ( multiply both sides by 5 )
sum = 60
let the number removed be x , then
= 11 ( multiply both sides by 4 )
60 - x = 44 ( subtract 60 from both sides )
- x = - 16 ( multiply both sides by - 1 )
x = 16
The number removed was 16
Answer:
3
Step-by-step explanation:
1 1/2 can be rewritten as 3/2, so 3/2*2=3.
Answer:
x= -3
y= -2
From the first one, if you add 2y to both sides you can plug that into the second one and solve for y. Then, plug y to the first one and solve for x.
Answer:
10 degrees Celsius
Step-by-step explanation:
So, the question is asking for the difference between -8 and 2.
-----------------------------------------------------------------------------------------------------------------
Explanation 1:
2 - (-8) = ?
2 + 8 = ?
10 = ?
-----------------------------------------------------------------------------------------------------------------
Explanation 2:
|2| - 0 = 2
|-8| - 0 = 8
2 + 8 = 10
