# 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?

• Chemistry -

1 mile = about 1.61 km.

Multiply: 25,000 * 1.61 = ? km

1 km = 1,000 m

• 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)

• 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.