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anonymous

  • one year ago

Homework question: Mentally convert the base ten numeral 10 to a base five numeral. Image in comments.

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  1. anonymous
    • one year ago
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  2. mathstudent55
    • one year ago
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    Base 10 Base 5 0 0 1 1 2 2 3 3 4 4 5 10 6 11 7 12 8 13 9 14 10 ?

  3. mathstudent55
    • one year ago
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    Here's another way of thinking of it. In base 10, there are 10 different digits. In base 5 there are five different digits. The number you want to write in base 5 happens to be twice the number of digits in base 5 numbers. What number is twice the number of digits in base 10 numbers?

  4. anonymous
    • one year ago
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    A way to think about it is through the basis representation theorem, which states that an integer n in base 10 can be expressed through the formula: n = a_0(k^s)+a_s(k^(s-1))... where k represents the base that you are inputting into your head. a_0, a_1,... a_n are constants which are put together to form a number. An example makes this more clear. Like 10, lets say the number you want to represent is 5 in base 10 currently and convert it to base 5. number n is therefore 5 and base k is 5. 5 = a_0(5^0)+a_1(5^1) and the max number s you can exponentiate to is determined by how big your number is. a_1 = 1 and a_0 = 0, and the number is represented by (a_s)(a_s-1)..., therefore it is 10. Try it out and solve the equation in your head for base 10 numbers in any other base.

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