Up 144 ft from the mountains,down 126 ft from the sky,up 25 ft from the telephone poles,down 65 ft from the tree.

Question

An eagle starts flying at an elevation of 42ft. The word problem shows the elevation changes during the eagles flight. What is the elevation at the brook?

Answer 1

Starting Point: 42ft

 

1) The eagle flew up 144ft.

So 42ft + 144ft = 186ft

 

2) The eagle flew down 126. 

So 186ft - 126ft = 60ft

 

3) The eagle then flew up 25ft.

60ft +25ft = 85ft

 

4) Lastly, the eagle flew down 65ft

85ft - 65ft = 20ft

 

The final elevation is 20ft.