chaseashley24
chaseashley24 chaseashley24
  • 21-02-2019
  • Mathematics
contestada

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

Respuesta :

jcherry99
jcherry99 jcherry99
  • 21-02-2019

Answer:

c = 34/d

d = 1/2

Step-by-step explanation:

Part A

Basic Formula

c = k/d

17 = k/2         Multiply both sides by 2

17*2 = k*2/2     Combine

34 = k

So the equation is c = 34/d

Part B

c = 68

k = 34

d = ?

68 = 34/d               Multiply both sides by d

68*d = 34 * d/d      Simplify.

68 d = 34                Divide by 68

d = 34/68                Simplify

d = 1/2

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