SOLUTION: Find the variation constant, and write a formula that expresses the indicated variation. n varies directly as q, and n 39 when q 3. Find n when q 8. same here, can't q

Question 165470: Find the variation constant, and write a formula that expresses the indicated variation.
n varies directly as q, and n 39 when q 3. Find n
when q 8.
same here, can't quite get the hang of these.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the variation constant, and write a formula that expresses the indicated variation.
n varies directly as q, and n 39 when q 3. Find n
when q 8.
-------------------
n = kq
Find "k":
39 = k*5
k = (5/39)
-----------------
So the equation is n = (5/39)q
----------------
Find n when q=8
n = (5/39)8
n = 40/39
-------------
Cheers,
Stan H.
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