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A 600-ft tall building is represented by a 30-in. tall model.

Using the same scale, what would be the model size of a
380-ft tall building?

1 Answer

4 votes


\huge\boxed{19\ \text{inches}}

First, find the scale factor by dividing the first building's real-life height by its model height.


(600)/(30)=(60)/(3)=20

Now, we'll write an equation to find the model height of the second building.


r=20m

Here is an equation where
r represents the real-life height of a building,
20 represents the scale factor, and
m represents the model height of the same building.

Fill in the information we already know.


380=20m

Divide both sides by
20.


(380)/(20) = (20m)/(20)


\large{\boxed{19}}=m

So, the model height of the second building is
19 inches.

User Patrick Stephansen
by
8.2k points

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