Question

A model is made of a car. The car is 9 feet long, and the model is 6 inches long. What is the ratio of the length of the car to the length of the model?

Answer 1

convert 9 feet to inches

if 1 foot = 12 inches, how many inches are in 9 feet?

Answer 2

108...?

Answer 3

good

so your ratio becomes

108 inches: 6 inches

which simplifies to 18: 1

Answer 4

and that's it

Answer 5

thank you . Can you help me get in the right direction for the next one ?

Answer 6

sure

Answer 7

The sears tower on chicago is 1,450 feet high. A model of the tower is 24 inches tall. What is the ratio of the height of the model to the height of the actual Sears Tower ?

Answer 8

same thing as before

convert 1450 feet to inches

Answer 9

I got 12400 ...?

Answer 10

not quite

Answer 11

what is 1450 * 12?

Answer 12

I meant to put 17400 not 12400

Answer 13

good

now we write our ratio as

24 inches : 17400 inches

or

1: 725

and that's it

Answer 14

Where did you get the 725 ?