Chemistry

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The circumference of the earth is 25,000 mi at the equator. What is the circumference in kilometers? in meter?

-- I really don't understand how to concer this. Please help!

  • Chemistry -

    1 mile = about 1.61 km.

    Multiply: 25,000 * 1.61 = ? km

    1 km = 1,000 m

    Multiply your km answer by 1,000.

  • Chemistry -

    To be more accurate for the meters --

    1 mile = 1 609.344 meters

    Multiply: 25,000 * 1,609.344 = ? m

  • Chemistry -

    ok um im still a little confused.

    is kg and km the same thing as kilometers?

    and...
    are those the steps you gave me to figure it out?

  • Chemistry -

    kg = kilogram (measures mass)
    km = kilometer (measures distance)

    Yes. Follow the steps I gave you to find the answers.

  • Chemistry -

    thanks for clearing that up for me!

    when i multiplied km by 1000 i ended up getting 40250000

    but when i mutiplied 25000x1609.344 i ended up getting 40233600

    Which one is the right answer?

  • Chemistry -

    The more accurate answer is 40,233,600 meters. But many teachers would probably accept the other answer, also.

  • Chemistry -

    Thank you so much!
    You really did help me !

  • Chemistry -

    You're very welcome.

  • Chemistry -

    Is that 40250000 is the right answer.

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