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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
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4+0 Answers

 #1
avatar+171 
+2

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

PsychoBaker  Jun 19, 2017
 #2
avatar+21 
+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
avatar+74989 
+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....!!!

 

 

cool cool cool

CPhill  Jun 20, 2017
 #4
avatar+21 
+2

CPhill, Oh my gosh, yes! you're a genius. thank you so much! 

ImTooHot2Die  Jun 20, 2017

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