SOLUTION: A 12-foot tree casts a 16-foot shadow. How many feet tall is a nearby tree that casts a 20-foot shadow at the same time

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Question 258409: A 12-foot tree casts a 16-foot shadow. How many feet tall is a nearby tree that casts a 20-foot shadow at the same time
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
use a ratio
12/16=x/20
16x=240
x=15 ft