8/6 or 1 2/6 or 1 1/4
Explanation:
1/4 + 1/4 = 2/4
2/4 = 3/6
5/6 + 3/6 = 8/6
8/6 simplified is 1 2/6 or 1 1/4
Answer:
The age of the person who entered the room is 15
Step-by-step explanation:
Ages of 5 people in a room are:
17, 16, 15, 17, 22
A person enters room, the mean age of 6 people is 17.
We need to find the age of person who entered the room.
We know that: 
Now, we have mean of 6 people that is 17
We know the age of 5 people while age of one person is unknown.
Let age of person which is unknown= x
So, we can write:
Sum of all data values = 17+16+ 15+ 17+ 22+x
where x is the age of person who enters the room.
Finding x

So, we get the value of x: x=15
Therefore, the age of the person who entered the room is 15.
Answer:
2 4/5 pictures
Step-by-step explanation:
We can use a ratio to solve
4/5 picture x picture
-------------- = -------------
2/7 hour 1 hour
Using cross products
4/5*1 = 2/7x
Multiply each side by 7/2
4/5 * 7/2 = 7/2 * 2/7 x
28/10 =x
2 8/10=x
2 4/5