SOLUTION: a building 80 feet high casts a shadow of 20 feet. a nearby building casts a shadow of 40 feet. how tall is the second building

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Question 332440: a building 80 feet high casts a shadow of 20 feet. a nearby building casts a shadow of 40 feet. how tall is the second building
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
a building 80 feet high casts a shadow of 20 feet.
a nearby building casts a shadow of 40 feet.
how tall is the second building
:
let b = ht of the 2nd building
:
Use ratio equation
b%2F80 = 40%2F20
20b = 3200
b = 160 ft