Question

Find h when V=667.82 and r=7 using the formula V=πr^2 (volume of a cylinder).

V = πr^2h
667.82 = (π)(7^2)(h)
667.82 = 49πh

667.82÷ = 49πh÷
49πh 49π


Can you show me how the answer is the approximation of 4.34?

The explanation in the book isn't step-by-step for the last part, for it is not clear to me.

Answer 1

(667.82)/49(3.142)

Dont't use \[\pi\] to your calculator.
use 3.142 instead.

Answer 2

You multiply 49 by 3.142 first,
then 667.82 divide 153.958

Answer 3

Because your calculator use 667.82 divide by 49 first, and thats wrong

Answer 4

Oooh okay. Now, I get it. That makes sense. Thank you so much!

Answer 5

I get it, the book rounded to the nearest hundredth, so it would be 4.34.