Question

Who is the density of on object with o moss of t20g on a volume of 7mL?

Answer 1

Answer:

2.857 g/mL

Explanation:

as we know density = mass/volume

Answer 2

2.857 g/mL.

M
——— Is a formula that can help you. You
V | D Just set this up and then plug in
what you have. So for example in
this problem you have mass and volume and are solving for density so the triangle would look like this:

20
-————
7 | D

This now tells you to divide 20 by 7 to find out the density. Now let’s say you had volume and density and were trying to solve for mass. The triangle would look like this:

M
—————-
7 | 2.857

Now the triangle shows you that you have to multiply 7 by 2.857 to find the mass. If you just remember this triangle it will save you in the future trust me.