The Waccamaw Bridge is 80 yards long. The length of a model of the bridge is 20 inches long. What is the scale of the model?

Answer 1

To find the scale of the model, we need to convert the length of the bridge and the length of the model to the same unit of measurement.

Since 1 yard is equal to 36 inches, the length of the Waccamaw Bridge in inches is:
80 yards * 36 inches/yard = 2880 inches

Now we can calculate the scale of the model by dividing the length of the bridge by the length of the model:
Scale = Length of bridge / Length of model
Scale = 2880 inches / 20 inches
Scale = 144

Therefore, the scale of the model of the Waccamaw Bridge is 1:144.