SOLUTION: Could I please have some help solving this problem. Thank you. x varies directly with y and inversely with z. x=0.25 when y=10 and z=20. find x when y=20 and z=10. Thank you...

Question 139311: Could I please have some help solving this problem. Thank you. x varies directly with y and inversely with z. x=0.25 when y=10 and z=20. find x when y=20 and z=10. Thank you...
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x varies directly with y and inversely with z.
x = ky/z
------------------
x=0.25 when y=10 and z=20
Use this information to find "k":
0.25 = k*10/20
k = 0.125
---------------------
Now you have the equation:
x = 0.125y/z
-------------------
Use that equation to answer the next part of the problem:
find x when y=20 and z=10.
-----------------------------------
x = 0.125*20/10
x = 0.25
================
Cheers,
Stan H.

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