Questions on Algebra: Proportions answered by real tutors!

Algebra ->  Algebra  -> Proportions -> Questions on Algebra: Proportions answered by real tutors!     (Log On)
Ad: Algebra Solved!™: algebra software that solves YOUR algebra homework problems with step-by-step help!

   

Question 143442: Y varies directly with respect to x. When x= -5, and y=20 what is y when x=18?: Y varies directly with respect to x. When x= -5, and y=20 what is y when x=18?
Answer by edjones(2391) About Me  (Show Source):
You can put this solution on YOUR website!
y/18 = 20/-5 Proportion
y/18=-4
18y/18=-4*18
y=-72
.
Ed