Answers

  • Brainly User
2016-01-03T11:00:56+08:00
Variation Equation:

p = kqr

Plug-in the values of p, q, and r to solve for constant k:

4 = k (6)(3)

4 = k 18

 \frac{4}{18}  \frac{k(18)}{18}

k =  \frac{4}{18}   

k = ²/₉

ANSWER:  The constant (k) of joint variation is ²/₉.

Check: 

4 = (²/₉)(6)(3)
4 = (²/₉)(18)
4 = ³⁶/₉
4 = 4  

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