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March 28, 2017

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if you have two spinners,the first spinnerr has three sections: -1,-5,-6.the second spinner also has three sections:-5,4,8.if you spin both spinners and ADD the two numbers,what is the probability that the sum will be negative?

  • algebra 1 - ,

    Make a table of outcomes, S=sum:
    (Sorry, I have not found a way to line up the columns).

    S -1 -5 -6
    -5 -6 -10 -11
    4 3 -1 -2
    8 7 3 2

    Out of the 9 outcomes, how many are negative? Hence deduce the probability.

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