Posted by Mary on Sunday, July 6, 2008 at 3:31pm.
saturn is approximately 1.4 x10^9 kilometers from the Sun. If light travels at approximately 3.0 x 10^5 kilometers per second, how long does it take light from the Sun to reach Saturn? Express your answer in scientific notation.

Algebra 2  drwls, Sunday, July 6, 2008 at 4:51pm
Divide the separation distance by the speed of light, using scientific notation.
We will be glad to critique your work, if necessary.

Algebra 2  bobpursley, Sunday, July 6, 2008 at 4:58pm
We will be happy to check your work or thinking.
time=distance/speed

Algebra 2  Mary, Sunday, July 6, 2008 at 5:36pm
I divided 1.4 x 10^9/3.0 x10^5=
4.7 x 10^4 sec

Algebra 2  drwls, Sunday, July 6, 2008 at 6:00pm
Try again. You got the exponent wrong

Algebra 2  Mary, Sunday, July 6, 2008 at 6:36pm
answer=4.7 x10^3

Algebra 2  Mary, Sunday, July 6, 2008 at 6:43pm
I thought you take 10^95 or 10^4 is the exponent

Algebra 2  drwls, Sunday, July 6, 2008 at 8:33pm
0.47*10^4 = 4.7*10^3

Algebra 2  Mary, Monday, July 7, 2008 at 7:57am
I understand now. When i divided it gave me .047. Thank you for your help.
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