A 4-foot-tall mailbox casts a shadow that is 2.4 feet long. At the same time, a nearby street lamp casts a shadow that is 8 feet long. How tall is the street lamp?
its 4.8 feet long because since the one was 4 feet high and the second one is 8 feet it would be doubled
Set up a ratio
4 ft mailbox is to 2.4 ft shadow as x ft lamp is to 8 ft shadow
4/2.4 = x/8
solve for x = lampost height