Question

Please help and explain how to solve

Answer 1

A 45-foot tree will cast a 81-foot shadow.

Explanation:

Set up a proportion.

I'll set mine up like this:

`(Height of Tree)/(Shadow)=(Height of Tree)/(Shadow)`

Insert the values given then solve for the unknown (t).

`(25)/(45)=(t)/(81)`

`(81)(25)/(45)=(t)/(81)(81)`

`45=t`

Answer 2

45

Explanation:

25 ÷ 45 = 0.555 x 81 = 45