Question

6. You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?​

Answer 1

Answer:

 Density = 3 g/cm³

Explanation:

Density = mass/volume

            = 45/15

            = 3 g/cm³

Answer 2

$\small{\underline{\sf{\red{Given:\rightarrow}}}}$

$\sf{Mass\ of\ rock = 45g = \dfrac{45}{1000}kg =0.045kg}$

$\sf{Volume\ of\ rock =15cm^3 }$

$\small{\underline{\sf{\blue{Find:\rightarrow}}}}$

• $\sf {Density\ of\ the\ rock= ??}$

$\small{\underline{\sf{\green{Formula \ used:\rightarrow}}}}$

$\boxed{\sf{Density=\dfrac{mass}{volume}} }$

$\small{\underline{\sf{\pink{SoLution:\rightarrow}}}}$

$\sf{\implies Density = \dfrac{0.045} {15} }$

$\sf{ \implies Density = 0.003}$

$\bf{\underline{\therefore Density\ of\ rock\ is\ 0.003kg/cm^3 }}$

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