question_answer 24)

Evaluate each of the following:  (a) \[\text{(}-\text{3}0\text{)}\div \text{1}0\]                    (b) \[50\div (-5)\]                             (c) \[\left( -\text{36} \right)\div \left( -\text{9} \right)\]           (d) \[\left( -\text{49} \right)\div \left( \text{49} \right)\] (e) \[13\div [(-2)+1]\]                    (f) \[0\div (-12)\]                              (g) \[(-\text{31})\div [(-\text{3}0)+(-\text{1})]\] (h) \[[(-\text{36})\div \text{12 }\!\!]\!\!\text{ }\div \text{3}\]    (i) \[[(-6)+5]\div [(-2)+1]\]                

Answer:

                (a) \[\text{(}-\text{3}0\text{)}\div \text{1}0=-\text{ 3}\]               (b) \[\text{5}0\div (-\text{ 5})=-\text{ 1}0\]                (c) \[(-\text{36})\div (-\text{9})=\text{4}\]          (d) \[(-\text{49})\div (\text{49})=-\text{1}\] (e) \[13\div [(-2)+1]=13\div (-1)=-13\]                    (f) \[0\div (-\text{12})=0\]    (g) \[(-\text{31})\div [(-\text{3}0)+(-\text{1})]=(-\text{31})\div (-\text{31})=\text{1}\]  (h) \[[(-\text{36})\div \text{12}]\div \text{3}=(-\text{3})\div \text{3}=-\text{1}\]   (i) \[[(-\text{6})+\text{5}]\div [(-\text{2})+\text{1}]=(-\text{1})\div (-\text{1})=\text{1}\].