posted by Sandra
A sports team is building a new stadium on a rectangular lot of land. If the lot measures 6x by 10x and the sports field will be 1x by 4x, how much of the lot will be left over to build bleachers on?
area of lot = (6x)(10x) = 60x^2
area of field = x(4x) = 4x^2
area left for bleachers = 60x^2 - 4x^2 = 56x^2