An engineer makes a model of a bridge using a scale of 0.5 cm = 3 feet. The length of the actual bridge is 123 feet. What is the length of the model?

20.5 cm

Step-by-step explanation:

Set up a proportion where x is the length of the model in cm:

=

Cross multiply and solve for x:

3x = 61.5

x = 20.5

So, the model's length is 20.5 cm

-1/2 +2

step-by-step explanation:

it has the same slope and a different y-intercept

hope this : )