Answer:
![55.555...\ (\%)](https://tex.z-dn.net/?f=55.555...%5C%20%28%5C%25%29)
Step-by-step explanation:
What percent of values is between the first and third quartiles
![\text{Quartile 1} =\frac{75+100}{2} =87.5](https://tex.z-dn.net/?f=%5Ctext%7BQuartile%201%7D%20%3D%5Cfrac%7B75%2B100%7D%7B2%7D%20%3D87.5)
![\text{Quartile 2} =\frac{200+225}{2} =212.5](https://tex.z-dn.net/?f=%5Ctext%7BQuartile%202%7D%20%3D%5Cfrac%7B200%2B225%7D%7B2%7D%20%3D212.5)
50 < 75 < 87.5 < 100 < 125 < 150 < 175 < 200 < 212.5 < 225 < 250
Then we have 5 values between the first and third quartiles which are :
100, 125, 150, 175, 200
Therefore,
The percent of values between the first and third quartiles is :
![\frac{5}{9} \times 100=55.555...](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B9%7D%20%5Ctimes%20100%3D55.555...)
Answer:
So, the height of the pyramid is 6.
Answer:
There is obviously only 1 10x10 square. If we start with a 9x9 square in the top left corner, we can move it down 1, across 1 and back up 1, so there are 4 possible 9x9 squares.
For 8x8 we can move down 1, then 2 and we can move across 1 or 2 so that's 9 possible 8x8 squares.
For 7x7 we can go down 3 and across 3, so that's 4x4=16 possible squares.
The pattern is now clear the total number if squares is 1+4+9+16+…+100.
There's a formula for this, which I had to look up, but any the sum of the first n squared is 1/6n(n+1)(2n+1)1/6n(n+1)(2n+1), so the total number of squares is 10x11x21/6=5x11x7=385.
The answer is 11 and 16
16-11=5
16*11=176