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masya89 [10]
2 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]2 years ago
8 0
The building is about 56 feet tall
irinina [24]2 years ago
5 0
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.
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