contestada

For a group of objects made of the same material, the weight of an object varies directly with its volume. if an object that has a volume of 20 cubic inches weighs 28 ounces, what is the constant of variation?

Respuesta :

The constant of variation is 1.4.

Direct variation is of the form y/x = k.

Since the weight varies directly with the volume, we set this up as 28/20 = k.  Dividing this out, we have 1.4 = k.

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