A building in a city has a rectangular base. The length of the base measures 70ft less than twice the width. The perimeter of the base is 910 ft. What are the dimensions of the base?
base=2x-70 width=x perimeter of a rectangle=2(base)+2(width) We can suggest the next equation: 2(2x-70)+2x=910 4x-140+2x=910 6x=910+140 6x=1050 x=1050/6 x=175
