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11-09-2019
Mathematics

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Phil, Melissa, Noah, and olivia saw a tall tree that cast a shadow 34 feet long. They observed at the same time that a 5-foot-tall person cast a shadow that was 8.5 feet long. How tall is the tree?

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12-09-2019

Answer:

20 ft

Step-by-step explanation:

The tree's shadow is 34/8.5 = 4 times the length of the person's shadow, so the tree is 4 times a tall as the person:

4×5 ft = 20 ft . . . . . the height of the tree

_____

Shadow lengths are proportional to the height of the object casting the shadow.

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