Which of the following density formulas have been rearranged correctly? pls help i have no idea what i’m doing 1. v = m/d

2. m = d/v

3. v = md

4. m = v/d

v = m/d

Explanation:

To know which option is correct, we shall rearrange the the formula of density. This can be obtained as follow:

The density of a substance is defined as the mass per unit volume of the substance. Mathematically, it is expressed as:

Density (d) = mass (m) / volume (v)

d = m/v

Make m the subject

d = m/v

Cross multiply

m = dv

Next, made v the subject

d = m/v

Cross multiply

dv = m

Divide both side by d

v = m/d

SUMMARY:

From the density formula (i.e d = m/v) we obtained:

m = dv

v = m/d

Therefore, option v = m/d gives the correct answer to the question.