On the blueprint of a house, 38 millimeters represents 6 meters. The length of the living room is 57 millimeters on the blueprint. What is the actual length of the living room?

Answer 1

38/6 = 57/x

19/3 = 57/x

19x = 3(57) = 171

x = 171/19 = 9 meters actual size

38/57 = 2/3 = 6/9