last question :)
A 60 foot light pole casts a shadow that is 40 feet long. At the same time, a nearby light post casts a shadow that is 15 feet long. How tall is the light post?

Question

last question :)
A 60 foot light pole casts a shadow that is 40 feet long. At the same time, a nearby light post casts a shadow that is 15 feet long. How tall is the light post?

jim_thompson5910 · Answer

(Height of light pole)/(Length of light pole's shadow) = (Height of light post)/(Length of light post's shadow)


60/40 = x/15


60*15 = 40x


900 = 40x


900/40 = x


22.5 = x


x = 22.5


So the height of the light post is 22.5 feet.

jim_thompson5910 · Answer

You start by setting up a proportion. Then you cross multiply. From there, you divide both sides by 40 to solve for x.

anonymous · Answer

thank you sooooo very much :)

jim_thompson5910 · Answer

you're welcome