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    4. divide 8.1 divided by (-0.3)
    divide 8.1 divided by (-0.3)

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    0  Views: 846 Answers: 2 Posted: 12 years ago
    Brain_Chicken

    the answer in -27 easy :)
    Commented 12 years ago
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      2 Answers

      8.1/-.3 if you rationalize the denominator you get 81/-3    you can do this because the one number you can multiply anything by and not change it is 1 which can take on many forms.  the one we want to use for this is 10/10 because when we multiply 8.1/-.3 with 10/10 we get    81/-3    since a +/- = - and 81/3=27 then our answer is -27  to prove this to yourself take a calculator and plug in both 8.1/-.3 and 81/-3 you will see that you get the same answer in both cases

      12 years ago. Rating: 2
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        Brain Chicken: Not that easy. I just play tic-tac-toe.  ""

        12 years ago. Rating: 0
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