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anonymous
 one year ago
MEDAL AND FAN PLEASE HELP Cylinder
A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percent change in volume between cylinders A and B? (5 points)
anonymous
 one year ago
MEDAL AND FAN PLEASE HELP Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percent change in volume between cylinders A and B? (5 points)

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mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1all you need to to is find the both of the cylinder volumes.

mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1then divide the first cylinder by the second one, that will give you a number, you then turn that number into a percentage.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im totally lost here can you tell me how to find the volumes and stuff

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Cylinder B is 50% smaller than cylinder A. Cylinder B is 75% bigger than cylinder A. Cylinder B is 150% smaller than cylinder A. Cylinder B is 100% bigger than cylinder A.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Since you were given the volume of cylinder B in terms of pi, calculate the volume of cylinder A also in terms of pi.

mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1\[V=\pi(7)^2(5)=245inches^3\]

mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1\[Cylinder B = 490\pi\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what would be my final answer? @Mindblast3r

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\Large V_B = 490 \pi~in.^3\) \(\Large V_A = \pi r^2 h = \pi (7~in.)^2(5 ~in.) = 245 \pi ~in.^3\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do i do after? @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Since both volumes are shown in terms of pi, and you are interested in the percent difference, you can drop pi from both. What is the percent change from 245 to 490?

mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1\(\color{blue}{\text{Originally Posted by}}\) @Mindblast3r \[\frac{ CylinderA }{ CylinderB }=\frac{ 245\pi }{ 490\pi }=0.5=50percent\] \(\color{blue}{\text{End of Quote}}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you!!! @Mindblast3r

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got it thank you both @mathstudent55 @Mindblast3r

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@Mindblast3r You need to read the question carefully and make sure you answer the question.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It would be A right?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The answer is not 50%

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(percent~change = \dfrac{new~amount  old~amount}{old~amount} \times 100\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Which is it theN? @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Use the formula above to find a percent change. Use 245 as the old amount and 490 as the new amount.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Its D right????? @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(percent~change = \dfrac{new~amount  old~amount}{old~amount} \times 100\) \(percent~change = \dfrac{490  245}{245} \times 100\) \(percent~change = \dfrac{245}{245} \times 100\) \(percent~change = 1 \times 100\) percent change = 100%

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. The answer is that cylinder B is 100% bigger than cylinder A.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you help me with another one? please @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@Mindblast3r Percent change is based on the formula I wrote above. Percent comparisons are tricky. If the question were "what percent of cylinder B's volume is cylinder A?" Then the answer would be 50%. The way the question was asked, though, it requires an answer of 100%. This is why you need to read the problem carefully bec with he given info, the answer could be 50% or 100% or other numbers depending on which way the question is asked.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Sorry, it very late for me. GTG

mindblast3r
 one year ago
Best ResponseYou've already chosen the best response.1ahh i see what they did.
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