Question

Light travels at a speed of about 200,000 miles per second how many miles per second can light travel in an hour

using scientific notation

Answer 1

6.4 x 10^8

Explanation:

200,000 miles per second

3,200 seconds in a minute

200,000 x 3,200 = 640,000,000

^^move the decimal point because it should only be between 1 and 10, the decimal point ends up moving 8 spaces, which is why its 10^8

Answer 2

6.71x10^8 is the answer
It travels 671 million