SOLUTION: y varies directly as x and y = 27 when x = 3. Find the following: a. The equation that gives the relationship between x and y. b. The value of y when x = 4. c. The value of x wh

Algebra ->  Equations -> SOLUTION: y varies directly as x and y = 27 when x = 3. Find the following: a. The equation that gives the relationship between x and y. b. The value of y when x = 4. c. The value of x wh      Log On


   

Question 1195832: y varies directly as x and y = 27 when x = 3. Find the following:
a. The equation that gives the relationship between x and y.
b. The value of y when x = 4.
c. The value of x when y = 54.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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y varies directly as x and y = 27 when x = 3.
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k, variation constant
highlight%28y=kx%29

The other given data
k=y%2Fx
k=27%2F3
k=9

highlight%28highlight%28y=9x%29%29