1. If y varies inversely as x and x = 2 when y = 8, find x when y= 5.

16/5

Step-by-step explanation:

Since y varies inversely as x,  then xy = k  

                                                          2(8) = 16 = k

Therefore, xy = 16

Now,  5x = 16

x = 16/5

answer: -8.2562234e+13

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