An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot sh

Question

masya89 [10]

3 years ago

8

An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot sh

adow. What is the approximate height of the building to the nearest foot?

Mathematics

2 answers:

Rainbow [258] · Answer 1 · 2022-08-17T19:27:56+03:00

Rainbow [258]3 years ago

8 0

The building is about 56 feet tall

irinina [24] · Answer 2 · 2022-08-17T20:29:02+03:00

For this problem, you could use the Scale Factor.
I will use x for the height of the building.

So 8 is to 90 as 5 is to x.

Our equation is:

8(SF) = 90

Divide both side by 8:

SF = 45/4

Then, we plug SF into the next equation:

5(SF) = x
5(45/4) = x
56.25 = x

Round to the nearest foot, and the height of the building is 56 feet.