# math-volume

I'm confused with how to solve this problem, so help would be great!

The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi

All this is asking you to do is get r=something. First, I would divide both sides by 4/3, giving you:
3V/4 = pi r^3.
Then, divide each side by pi, giving you:
3V/4pi = r^3.
Then, cube-root each side, finally giving you:
cubedroot(3V/4pi) = r.

Multipy both sides of the equation by 3/4:
3V/4 = ð r^3
Divide each side by ð:
r^3 = 3V/4ð
Take the cube root of each side:
r = cube root(3V/4ð)

oh ok thanks. I thought I had to do more steps. thanks again for the help.

in above solution ð = pi

1. 👍 0
2. 👎 0
3. 👁 103

## Similar Questions

1. ### math-volume

I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi 4/3*pi*r3 = V Multiply by 3

asked by julie on January 21, 2007
2. ### math

Given that: 4(2g + 104) - 96 = 504 + 6(g - 14), solve for g. i'm confused on how to set this problem up - if anyone could help that would be great. thank you.

asked by erika on September 7, 2014
3. ### chemistry

Hi, I've watched a tutor solve a simple dilution solutions problem on video. There's a calculation in that problem I wish you could clarify for me. It goes like this: Approximately what volume of water is needed to dilute 25.0 mL

asked by Cliff on December 11, 2010
4. ### Algebra

Hey! I like math,but this year I'm doing algebra 1 and am not doing so well. I understand the lessons,but then the next day I learn a new way to solve a different problem and confuse the old way with this new way. So on tests,I

asked by Lis on March 12, 2008
5. ### Calculus

Solve the following initial value problem explicitly: y'= ye^-x , y(0)=1 How do you solve this problem? I'm really confused!

asked by Tania on February 2, 2011
6. ### History

1. A Hindu society in Southeast Asia that resisted both Buddhism and Islam was: A. Bali. B. Indonesia. C. Thailand. D. Cambodia. im confused between A and B 2. By the twelfth century, great center of Islamic learning in West

asked by Any on February 6, 2014
7. ### Chemistry

N2(g) + O2(g) → N2O5(g) What volume of oxygen gas reacts to yield 750.0 cm3 of N2O5? The reaction conditions are 350°C and 2.50 atm pressure. 2N2 + 5 O2 = 2N2O5 I balanced correctly. What is my next step to solve this problem.

asked by Harry on February 2, 2014

Q:Sabrina is making two bird feeders in the shape of right rectangular prisms. The smaller feeder has dimensions that are 1/4 of the dimensions of the larger feeder. Using the formula V=lwh, how do their volumes compare??? A: A)

asked by dingbat on March 29, 2013
9. ### Math

Hello I am having trouble with a pre-calculus problem. The problem is ln|Sin2X-CosX-1|=0 if you could help by listing the steps to solve that would be great! Thanks!

asked by Anonymous on December 2, 2013
10. ### Algebra

Please help me to solve this problem. Thank you in advance for helping to solve this problem. Have a great day. Here is the question? Find an equation of the line that passes through the two given points. Write the equation in

asked by Jay on October 20, 2014

More Similar Questions