George, who is 6.25feet tall, needs to know the height of a tree that he is going to cut down. He notices that he casts a 10foot shadow when the tree casts a 28foot shadow. The height of the tree is feet tall. Enter only the number.
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1 answer

George's height / shadow = 6.25 / 10 = 0.625
For a tree:
Tree's height / shadow is also 0.625
height / shadow = height / 28 = 0.625
height = 28 ∙ 0.625 = 17.5 ft
only the number = 17 ft 👍
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