SOLUTION: If y varies directly as x and y=14 when x=8. Find x when y=21.

Algebra ->  Equations -> SOLUTION: If y varies directly as x and y=14 when x=8. Find x when y=21.      Log On


   



Question 96381: If y varies directly as x and y=14 when x=8. Find x when y=21.
Answer by mathman409(67) About Me  (Show Source):
You can put this solution on YOUR website!
x=12 because 4x=7y so if there were 21y then it would be 4 * 3 which is 12