This is the way I do it to find the average.
10 girls times 70 = 700
15 boys times 80= 1200
700+1200=1900 all their scores
1900÷25 (number of boys and girls)=76 or 76%
The answer is 0.60 because the sum of the shaded angles equals 145°, divided by 360° equals 0.60
I got 2 aces. one heart one spade. a jack of clubs a joker and a partrige in a pear tree.<span />
Given:
Sphere and cylinder have same radius and height.
Volume of the cylinder = 48 cm³
To find:
The volume of the sphere.
Solution:
Radius and height of cylinder are equal.
⇒ r = h
Volume of cylinder:

Substitute the given values.
(since r = h)


Divide by 3.14 on both sides.


Taking cube root on both sides, we get
2.48 = r
The radius of the cylinder is 2.48 cm.
Sphere and cylinder have same radius and height.
Volume of sphere:



The volume of the sphere is 63.85 cm³.