The scale on a highway construction drawing is 0.5 inches for every 45 miles. If the drawing shows the highway is 4 inches long, how long is the actual highway?

360 miles

Step-by-step explanation:

Every half inch on the map equal 45 miles on the highway. Find out how many half-inches there are in 4 inches, and multiply that by 45 to get the answer.

To do this, first divide 4 by 0.5

4/0.5 = 4 / (1/2) = 4 (2/1) = 8

There 8 half-inches in 4 inches

**Also think that there are 2 halves in 1, so in 4 there are 2 (4) halves, which is 8

Now take 8 and multiply by 45

8 (45) = 360

The highway is 360 miles long