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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
Answer:
Step-by-step explanation:
Multiple 4*6
Get that answer then divide the answer u got for 4*6 and divide that with 60 which equals 24÷60
How do we help u??? we can’t graph for u
Hey there
Lets solve this question together,
Convert <span>76.8%</span><span> to a decimal.
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Multiply 0.768<span> by </span>x<span> to get </span><span>0.768x</span><span>.
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Multiply<span> each </span>term<span> by </span><span>1 / 0.768</span><span> and simplify.
</span>
Cancel the common factor of 0.768.
Divide 40.32<span> by </span>0.768<span> to get </span><span>52.5
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