Question

A building has a shadow that is 18 feet long. Will is 5 feet tall and he is standing next to the building. Will has a shadow that is 3 feet long. Use this information to complete the statement about the building.

Answer 1

5*18=90
3*x=90
X=90/3
X=30

Answer 2

The height of the building is
`30feet`

Explanation:

The question is wrong. The sentence ''Use this information to complete the statement about the building'' should be ''What is the height of the building?''

In order to find the height of the building, I add a graph to this exercise.

We can state that exists a linear relationship between the height of the objects and its shadows.

By looking at the graph, we can write the following linear relationship :

`(x)/(18ft)=(5ft)/(3ft)`

If we want to find the height ''x'' of the building :

`x=((5ft)/(3ft)).18ft=30ft`

`x=30ft`

We find that the height of the building is
`30ft`