a) 20.9
The mean is calculated by adding up the scores and dividing the total by the number of scores, it is also called the average.
First, we can count and see there are 11 players (makes sense for a football team). Adding up the ages gives us 19 + 19 + 20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23 = 230. Divide by 11 and we get a mean of of about 20.9!
b) 30
To figure this out, we will set up an equation that looks like this:
And now we will solve:
[multiply both sides by 12] 230 + x = 264
[subtract 130 from both sides] x = 30
So the age of the new player should be 30!
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
9514 1404 393
Answer:
3(n+4) = 12
Step-by-step explanation:
The sum of n and 4 is (n+4). Three times that sum is 3(n+4). When we say it "is 12", we mean it is equal to 12.
3(n +4) = 12
Answer
x = 17
Step-by-step Explanation
The question gives us Angle DEF as (3x + 1) and Angle DEG as (5x + 19).
Note that G is the lower end of the diagram.
What isn't evident from the diagram is that Line EF is a bisector for the DEG.
If Line EF is the bisector, this means that it divides the angle into two equal parts.
(Angle DEG) = (Angle DEF) + (Angle FEG)
Angle DEG = (5x + 19)
Angle DEF = (3x + 1)
Angle FEG = Angle DEF (Since we already established that line EF being a bisector means it divides Angle DEG into two equal parts)
So,
Angle FEG = Angle DEF = (3x + 1)
(Angle DEG) = (Angle DEF) + (Angle FEG)
Substituting the parameters
(5x + 19) = (3x + 1) + (3x + 1)
5x + 19 = 3x + 3x + 1 + 1
5x + 19 = 6x + 2
Collecting like terms by bringing all the coefficients of x to the same side
6x + 2 = 5x + 19
6x - 5x = 19 - 2
x = 17
Hope this Helps!!!
