SOLUTION: If someone could possibly help me with this I would be very grateful. Find the variation constant and an equation of variation where the y varies inveresly as x&y=5 when x=14

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If someone could possibly help me with this I would be very grateful. Find the variation constant and an equation of variation where the y varies inveresly as x&y=5 when x=14      Log On


   



Question 597865: If someone could possibly help me with this I would be very grateful.
Find the variation constant and an equation of variation where the y varies inveresly as x&y=5 when x=14

Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
If someone could possibly help me with this I would be very grateful.
Find the variation constant and an equation of variation where the y varies inveresly as x&y=5 when x=14

For all proportion problems, start with this:

Varying           "directly" or product of "jointlys" or 1 if none 
quantity  = k · ----------------------------------------------------------
                inversely variable or product of "inverselys" or 1 if none

In this problem the varying quantity is y.
there are no "directly"s or "jointlys", so we have 1 on top.
We have one inversely, x.  So we have x on the bottom:

y = k·1%2Fx

>>...y=5 when x=14...<<

Substitute these values:

5 = k*1%2F14

Multiply both sides by 14

14·5 = k

70 = k

Edwin