24% = 24/100 = 12/50 = 6/25
24% is 6/25 fraction of world's energy.
I'm going to try to do it in shorter time without calculator
cone is used to fill cylinder
conevolume times x=cylindervolume
so
x=cylinderv/conev
cylinderv=hpir^2
conevolume=1/3hpir^2
cylinder:
v=hpir^2
r=10
h=20
v=20*pi*10^2=2000pi
cone=1/3hpir^2
r=5
h=10
v=1/3(10)pi5^2=250pi/3
vcylinder/vcone=2000pi/(250pi/3)=6000pi/250pi=600/25=24
answer is 24 times
(2m46s1<span>1)</span>
Answer:
x = 6
Step-by-step explanation:
3x - 1 = 17
add 1 to both sides:
3x = 18
divide by 3:
x = 6
