Question

PLZ HELP I WILL MEDAL!
Janine inflated 1 ball to a radius of 18 cm and another ball to a radius of 12 cm.

How much more air was in the larger ball?
Use 3.14 to approximate pi and express your answer in hundredths.

________cm3

Answer 1

the volume of a sphere is

\[V = \frac{4}{3} \pi r^3\]

calculate the volume of each ball r = 18 and r = 12

the find the difference

Answer 2

don't forget to use 3.14 in place of pi

Answer 3

i dont understand

Answer 4

oh one sec

Answer 5

no i dont get it

Answer 6

i really just need the answer bc school ends tomarrow at five and i have A CRAP TON of schoolwork to finish. and if i dont finish it i wont get into a military school i really want to go to

Answer 7

air in larger balloon = 4/3 * 3.14 * 18^3
air in smaller balloon = 4/3 * 3.14 * 12^3

Answer 8

ok the large ball the volume will be

\[V = \frac{4}{3} \times 3.14 \times 18^3\]

the small ball

\[V = \frac{4}{3} \times 3.14 \times 12^3\]

do the 2 calculations and then find the difference...

Answer 9

idk how to do it

Answer 10

i got this so far -> 4/3* 18,312.4

Answer 11

do you have a calculator..?

Answer 12

yes

Answer 13

so if you got that far use

\[4 \div 3 \times 18312.4\]

Answer 14

24,416.5

Answer 15

that's good

same thing for the small ball.

then find the difference.... large ball - small ball

Answer 16

i got 17,182 as the answer, is it correct?

Answer 17

@campbell_st

Answer 18

i have one more can you help

Answer 19

nvm i got it

Answer 20

the answer was 17,182.08.