SOLUTION: A building that is 150 ft tall casts a shadow of 20 feet long. At the same time a tree casts a shadow of 2 ft. How tall is the tree?

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Question 5400: A building that is 150 ft tall casts a shadow of 20 feet long. At the same time a tree casts a shadow of 2 ft. How tall is the tree?


Answer by Abbey(339) About Me  (Show Source):
You can put this solution on YOUR website!
set it up as a proportionality

20%2F150+=+2%2Fx
Then cross multiply:
20x=300
Divide both sides by 20:
x=15
The tree is 15 feet high