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March 30, 2017

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Jim is making a diagram of the solar system. If he draws Neptune, which is 2795 million miles from the sun, 10 inches from the sun on his paper, how far away (to the nearest tenth of an inch) from the sun should he draw Mars, which is 142 million miles from the sun?

  • math word problem - ,

    set up the ratio
    x inches/142miles = 10 inches/2795miles
    x = 10(142)/2795 inches
    = .508

    about 1/2 inch.

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