Suppose c and d vary inversely and d=2 when c=17
Asked by maham237 @ in Mathematics viewed by 376 People
Suppose c and d vary inversely, and d = 2 when c = 17.
a. write an equation that models the variation?
b. find d when c = 68
Answered by maham237 @
Given:
d = 2
c = 17
a)
Inverse equation is like this:
c = k/d
where k is the constant value.
17 = k/2
17 * 2 = k
34 = k
b)
c = k/d
c*d = k
d = k/c
d = 34/68
d = 0.5
The value of d is 0.50
To check:
c = k/d
c = 34 / 0.5
c = 68
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