Help turning a number into base ten?

Help writing numbers in "base 10"?

How do you write the number 30412 in base ten?

& 79 in base ten? **these numbers are base five.. Please show steps..thank you!

4 Answers

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  • 9 years ago
    Favorite Answer

    (3 x 5⁴) + (0 x 5³) + (4 x 5²) + (1 x 5) + (2 x 5^0)

    => (3 x 625) + (0) + (4 x 25) + (5) + 2

    => 1875 + 0 + 100 + 5 + 2

    i.e. 1982

    79 cannot be in base 5!!

    :)>

  • Sue
    Lv 7
    9 years ago

    Base Ten place values: 10^3, 10^2, 10^1, 10^0

    translates to..................1000's, 100's, 10's, one's Any number to the 0 power is 1

    .........................................3, 502 translate as 3*10^3 + 5*10^2 + 0 *10^1 + 2* 10^0

    ALL bases follow the same concept.

    Here is base 5:

    5^4, 5^3, 5^2, 5^1, 5^0

    30412= 3*5^4 + 0*5^3 + 4*5^2 + 1* 5^1 + 2*5^0

    ..........=3*625 + 0*125 + 4*25 + 1*5 + 2*1

    ..........=1875 + 0 +100 + 5 +2

    ..........= 1982

    Now you try 79

    Hope this helped.

  • 9 years ago

    30412 is in base 5

    = 2*5^0 + 1*5^1 + 4*5^2 + 0*5^3 + 3*5^4

    = 2 + 5 + 100 + 3*625

    = 1982

    79 must be base 10 ( it can't be base 5)

    79 = 3*25 + 4

    = 304 to base 5.

  • Como
    Lv 7
    9 years ago

    625____125____25____5____1

    3_______0_____4____ 1____2------->1982 base ten

    ____________________7____9-------->44 base ten

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