SOLUTION: Light travels 1.18 × 10^10 in. In 1 second. How far will light travel in 1 nanosecond or 1 × 10^-9 s? Should I multiply or divide ? I need to write this in Scientific Notation App

Algebra ->  Finance -> SOLUTION: Light travels 1.18 × 10^10 in. In 1 second. How far will light travel in 1 nanosecond or 1 × 10^-9 s? Should I multiply or divide ? I need to write this in Scientific Notation App      Log On


   



Question 1126576: Light travels 1.18 × 10^10 in. In 1 second. How far will light travel in 1 nanosecond or 1 × 10^-9 s?
Should I multiply or divide ? I need to write this in Scientific Notation Applications ( 8th grade )

Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.
You need to multiply.


Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Light travels 1.18 × 10^10 in. In 1 second. How far will light travel in 1 nanosecond or 1 × 10^-9 s?
Should I multiply or divide ?
-------------
Light travels 1.18e10 in/second. How far will light travel in 1 nanosecond or 1e-9 seconds?
Should I multiply or divide ?
-------------------------
If you include the units in the operation, you'll know if you did the right thing.
---
(1.18e10 in/second)*1e-9 seconds = 11.8 inches.
= 1.18e1 inches or 1.18*10^1 inches
------------
Notice that the seconds cancel.