00:03
Hi there.
00:04
In this question, we have three blocks, a, b, and c, and we are trying to compare their densities.
00:11
So let's talk for a minute about what density is.
00:14
Density is equal to mass divided by volume.
00:23
And we're told that all three of these blocks have the same mass.
00:27
So i am going to let x equal mass.
00:35
And that would be in grams.
00:36
Okay, so we're going to let x equal mass in grams.
00:43
So let's think about each of these.
00:45
First of all, block a would have a density that is equal to x over 3 .0 centimeters cubed.
01:00
Block b would have a density that's equal to x divided by 5 .0 centimeters cubed...