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The mass of Neptune is about 1.030*10^23 metric tons.The mass of the sun is about 1.998*10^27 metric tons.About how many times is the mass of Neptune is the mass of the sun?

Scientific notation and round to the nearest thousandth.

Oct 3rd, 2015

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number of times = mass of Neptune / mass of the sun

                           =  1.998*10^27 /  1.030*10^23

                           =   1.93980583 * 10^(27-23)

                           =  1.93980583 * 10^4

                         = 1.940 * 10^4


answer is 

1.94 * 10^4



hope you understood..please message if you have any doubts...thank you
Sep 17th, 2015

number of times = mass of Neptune / mass of the sun

                           =  1.030*10^23 /  1.998*10^27

                           =   0.51551 * 10^(23-27)

                           =   0.51551 * 10^ -4

                         =  5.1551 * 10^ -5

                         =   5.16  * 10^ -5

answer is 

 5.16  * 10^ -5


Sep 17th, 2015

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