Add 145, 156, 210. and 255 then divide by 4. The mean equals 184.
First of all you do 2+3=5 then 1100/5 is 220
so 2*220=440
3*220= 660
so that means 440 boys and 660 girls
it depends on which order the boys and girls are put
The side lengths of quadrilateral are 21 inches; 11 inches; 11 inches; 7 inches.
<u>SOLUTION:</u>
Given, the perimeter of a quadrilateral (four-side polygon) is 50 inches.
Let the length of shortest side be n inches. The longest side is three times as long as the shortest side.
That is, length of largest side = 3n inches
The other two sides are equally long and are 4 inches longer than the shortest side.
Then, length of remaining two sides = 4 + n inches
We have to find the length of all four sides.
Now, we know that, perimeter = 50 inches

So, length of sides will be,

Answer:
42.5
Step-by-step explanation:
When you do the bottom corners, it 2x2 divided 2 then you do 2x2, then 5x2 divided by 2 you do 3.5x9.0 when you add all of them up you get 42.5.
Answer:
= 15
Step-by-step explanation:
21 + 15 = 36
36/2 = 18
Therefore, 15 is the missing number :33