<span>∵ There is a proportional relationship between the mass and the volume of the places of metal. Let volume = v and mass = m So, the relation between volume and mass will take the form: v = km where k is constant and can be calculated as follow: when m = </span><span>34.932 , and v = 4.1 ⇒⇒⇒ k = v/m = 0.117371 </span>when m = 47.712<span> , and v = 5.6 ⇒⇒⇒ k = v/m = </span>0.117371 when m = 61.344 , and v = 7.2 ⇒⇒⇒ k = v/m = <span>0.117371 when m = </span>99.684 , and v = 11.7 ⇒⇒⇒ k = v/m = <span>0.117371
∴ v = 0.117371 m </span> For v =<span>15.3 ∴ m = v/k = 15.3/0.117371 = 130.356 </span><span>gram
</span>The mass of a piece of this metal that has a volume of 15.3 cubic centimeters ≈ 130.4 gram (<span>round to the nearest tenth</span>)