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Answer:
The age of the person who entered the room is 15
Step-by-step explanation:
We are given:
Ages of 5 people in a room are:
17, 16, 15, 17, 22
A person enters room, and then the mean age of 6 people is 17.
We need to find the age of person who entered the room.
The formula to calculate mean is:
Now, in question we are given mean of 6 people that is 17
The age of 5 people are given while age of one person who enters the room is unknown.
Let age of person whose age is unknown= x
Now finding x using mean formula
So, The value of x: x=15
Hence, the age of the person who entered the room is 15
Ok...
5.6 = 56/10 = 560/100
1.1 = 11/10 = 110/100
0.12 = 12/100
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So, the answer is: 100
You could multiply both sides of the equation by 100 to get the value of (j) quickly.
5.6 = 56/10 = 560/100
1.1 = 11/10 = 110/100
0.12 = 12/100
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So, the answer is: 100
You could multiply both sides of the equation by 100 to get the value of (j) quickly.