First of all. I would like to formally apolagize to everyone, as my last question wasn't very informative or detailed and I am truly sorry for upsetting anyone.

This is the question from my Pace:

The volume of a paint can is 215 in2. If the height of the can is 7.5 in, what is the radius to the whole number?

I have looked through my pace but I can't find anywhere where it properly explains this. Please help.

ImTooHot2Die
Jun 19, 2017

#1**+2 **

What's a "pace?" Is it a workbook, are you in a private school or something?

PsychoBaker
Jun 19, 2017

#2**+1 **

Pyscho Baker, I'm homeschooled, doing Distance Education, and my school sends me paces, It's basically a 10 - 50 page workbook, with lots of questions and all that stuff, but the thing is a lot of the stuff they explain very poorly cause they don't have space to put massive detailed instructions. it sucks.

ImTooHot2Die
Jun 20, 2017

#3**+2 **

Volume would normally be given as inches^3....I'm going to assume that it is supposed to be

215 in ^3

The paint can is a cylinder.....and the volume of a cylinder is

pi * radius ^2 * height

Filling in what we know, we have

215 = pi * radius^2 * 7.5

Divide both sides by pi * 7.5

[215 / ( pi * 7.5) ] = radius^2

Take the square root of both sides

sqrt [ 215 / (pi * 7.5) ] = radius = about 3.02 inches = about 3 inches to the nearest whole number

Hope that helped....!!!

CPhill
Jun 20, 2017