Annie made a scale drawing of a boarding school. The scale she used was 2 millimeters : 1 meter. The actual width of a building at the school is 77 meters. How wide is the building in the drawing?

Question

this is for math homework. HELP PLEASE

Answer 1

Just use a ratio so if x is the unknown mm on the drawing,

2 mm/1 meter = x mm/77 meters then x = 154 mm