Suppose c and d vary inversely, and d=2 when c=17
Write an equation that models the variation
Find d when c=68
The equation that models the variation can be written as:
c*d = k, where k is the constant of variation.
We can find k using the given values: d=2 when c=17.
17*2 = k
k = 34
So the equation is:
c*d = 34
To find d when c=68, we can plug in c=68 and solve for d:
68*d = 34
d = 34/68
d = 1/2
Therefore, when c=68, d=1/2.