Question

Scale is the proportion used in determining the relationship between an actual object and a model of the object.

For example, real estate developers often make models of shopping centers. If a model of a store has a scale of 1 centimeter equaling 20 feet, what is the actual length of a store that measures 4 cm in length on the model?

A. 40 feet
B. 80 feet
C. 16 feet
D. 160 feet​

Answer 1

B. 80 ft

Step-by-step explanation:

If the scale is 1:20, then multiply the 4 by 20 to get 80.

You can also use addition to get the answer.

1 cm = 20 ft, 2 cm = 40 ft, 3 cm = 60 ft, 4 cm = 80 ft

(20+20+20+20=80)

You're just adding 20 ft everytime you add a cm.