1.there were 4 adults and 12 children on the bus. what was the ratio of adults to children
2.there are 20 chickens and 2 roosters in the chicken coop. what is the ratio of roosters to chickens?
3.there were 25 scouts and 5 scout leaders on the camping trip. what is the ratio of scouts to scout leaders?
4.88 homes in 100 have a video player.
5.12 out of 15 people live in the city or suburbs.
6.30 homes out of 100 do not have a personal computer.
7.there are 8 boys for every 6 girls in a class.
8.a car travels 676 miles in 13 hours.
9.a water pump moves 42 gallons in 7 minutes.
10.there are 12 boys and 8 girls in the class. what is the ratio of boys to the girls in class?
a. 3/2
b. 4/3
c. 22/25
d. 52/1
e. 3/10
f. 1/3
g. 1/10
h. 4/5
i. 6/1
j. 5/1

step-by-step explanation:

my butt

answer: ratio of volume of cone (with 3 times the height and equal diameter) to volume of cylinder is 2 to 1. the value of π is not used.

step-by-step explanation:

radius is diameter/2 = 4.

area of circle is π r^2.

volume of cylinder is height × area of base = hπr^2 = 3(4^2) π = 48π cubic inches.

not knowing the formula for volume of cone, i calculate it using calculus (which is for calculating things).

volume of cone is integral 0 to h area(y) dy. area(y) is π r(y)^2. r(y) runs r to zero as y runs zero to h, r(0) = r, r(h) = 0.

r(y) = r - r/h y

area(y) = π (r - r/h y)^2 = π (r^2 - 2r^2y/h + r^2y^2/h^2) = π r^2(1-2y/h+y^2/h^2)

antiderivative area(y) = π r^2 (y-y^2/h+y^3/(3h^2))

integral 0 to h = π r^2(h-h^2/h+h^3/(3h^2) - (0)) = π r^2(h - h + h/3) = π r^2(h/3) = π/3 r^2 h

volume of this cone is π/3(4^2)18 cubic inches.

= 6 16 π = 96π cubic inches.

cone has twice the volume, 96/48.

cone height is 6 times the cylinder.

ratio of volume formula: π r^2 cancels.

cone over cylinder ratio is 6h/3 to h, 2 to 1.