# Question #ab103

##### 1 Answer

Oct 17, 2017

#### Explanation:

The idea here is that the **density** of the object tells you the mass of

In this case, you know that the density is equal to

This implies that your sample will have a mass of

#10 color(red)(cancel(color(black)("cm"^3))) * "7.2 g"/(1color(red)(cancel(color(black)("cm"^3)))) = "72 g"#

Now, notice that you have one significant figure for the volume of the object. This implies that the answer must be rounded to one **significant figure**.

#"mass" = color(darkgreen)(ul(color(black)("70 g")))#