SOLUTION: suppose x varies directly with y and y=25 when x=140.what is the the value x when y=36

Algebra ->  Equations -> SOLUTION: suppose x varies directly with y and y=25 when x=140.what is the the value x when y=36       Log On


   

Question 1145400: suppose x varies directly with y and y=25 when x=140.what is the the value x when y=36
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
x varies directly with y
x = ky (where k is equal to the factor of proportionality)
140 = k25
k = 140/25
k = 5.6
Formula is x = 5.6y
x = 5.6y
x = 5.6 * 36
x = 201.6
Hope this helps :-)