D is the correct answer
the area of circle A is nine times the area of circle B
good luck
Answer x = 3 and y = 4
2x + 5x - 11 = 10
7x - 11 = 10
7x = 21
X = 3
So y = 4
Because 2 x 3 + y = 10
6 + y = 10
Y = 4
To answer this question, you need to know the formula for calculating the volume of cone and cylinder. The formula should look like this:
cone volume: π * r^2 * h/3
cylinder volume: π * r^2 * h
Now if you compare both of them with information that the radius and height is same, then the cone:cylinder volume ratio would be:
Cone volume/cylinder volume=
π * r^2 * h/3 / π * r^2 * h= 1/3
Cone volume is 1/3 of cylinder volume
