If y varies inversely as x and y=10 when x=10, find x when y is 20

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  5

Step-by-step explanation:

When y varies inversely as x, the relation is ...

  y = k(1/x) = k/x

Multiplying by x gives ...

  xy = k

The value of k can be found from (x, y) = (10, 10):

  (10)(10) = k = 100

Then the new value of x will be ...

  x(20) = 100

  x = 100/20 = 5

your answer is a

step-by-step explanation:

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a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.