A flagpole casts a shadow that is 23.5 feet long. At the same time of day, mrs gilbert who is 5.5 feet tall casts a shadow that is 7.5 feet long. How tall in feet is the flagpole?
shadow of the flagpole=23.5f Sf=23.5 shadow of gilbert=7.5f Sg=7.5 height of gilbert=5.5f hg=5.5 Sf/hf=Sg/hg 23.5/hf=7.5/5.5 23.5*5.5/7.5=hf (47/2*11/2)/7.5=hf (517/4)/(30/4)=hf (517*4)/(4*30)=hf 517/30=hf 17+7/30=hf 17.233.. feet=height of flagpole