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March 27, 2017

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Galaxy A is 600 million light years from earth. Galaxy B is moving away from the earth at a speed that is 80% as large as that of Galaxy A. How far from earth is Galaxy B?

A. 750 million light years.
B. 640 million light years.
C. 540 million light years.
D. 480 million light years

  • Physical Science - ,

    0.8*600,000,000 = ?

  • Physical Science - ,

    whah that's cool

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