### Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.1.4 > Problem 6-39

6-39.

The Earth travels

Review the Math Notes box in section 2.3.1

Now calculate the speed of the Earth in miles per hour.

6-39.

The Earth travels

Review the Math Notes box in section 2.3.1

Now calculate the speed of the Earth in miles per hour.