suppose c and d vary inversevly, and d = 2 when c = 17
a. write an equation that models the variation.
b. find d when c = 68
a. Since c and d vary inversely, the equation that models the variation is:
c * d = k
where k is a constant.
b. Since d = 2 when c = 17, we can substitute these values into the equation to solve for k:
17 * 2 = k
34 = k
So the equation that models the variation is:
c * d = 34
Now, when c = 68:
68 * d = 34
d = 34 / 68
d = 0.5
Therefore, when c = 68, d = 0.5.