Asked by Anonymous

A year on Mars is 1.88 Earth years. If you are 13 years old on Earth, how old would you be on Mars?


I don't know if I am supposed to multiply or divide. I also don't understand what the question is trying to state.


Thanks

Answers

Answered by hi there
Use dimensional analysis with the ratio of Martian years to Earth years.


(1 Martian year / 1.88 Earth years)(13 Earth years) = 6.91 Martian years


The Earth years will cancel out and the remaining unit will be Martian years.


You are basically dividing your age by 1.88.
Answered by Steve
13/1.88

Don't be baffled by the decimal stuff. Just use easy numbers. If one Mars year were two earth years, birthdays would happen half (1/2) as often.
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