Question

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?

Answer 1

Answer:

$360\ miles$

Step-by-step explanation:

we know that

using proportion

$\frac{0.5}{45} \frac{in}{mi}=\frac{4}{x} \frac{in}{mi} \\ \\x=45*4/0.5\\ \\x= 360\ miles$