Chapter 4.5, Problem 9IP

To determine

To find that how many miles of roads does United States have than Japan.

Answer to Problem 9IP

The more miles of road that United States have is 32.7 miles.

Explanation of Solution

Given information: United States has $4\times {10}^6$ miles of road and Japan has $7.3\times {10}^5$ miles of road.

The more miles of road United States have as compared to Japan is $\left(4\times {10}^6-7.3\times {10}^5\right)$

  $=\left(40-7.3\right)\times {10}^5=32.7\text{miles}$ .

Hence, the more miles of road that United States have is 32.7 miles.