SOLUTION: y varies directly as x. If y = 15 when x = 60, find y when x = 100 a.25 b.55 c.105 d.400

Algebra ->  Formulas -> SOLUTION: y varies directly as x. If y = 15 when x = 60, find y when x = 100 a.25 b.55 c.105 d.400      Log On


   

Question 690257: y varies directly as x. If y = 15 when x = 60, find y when x = 100
a.25
b.55
c.105
d.400
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
y = kx
15 = k(60)
k = 15%2F60+=+1%2F4
...
y = %281%2F4%29%28100%29
highlight_green%28y=25%29
………………………
Have more math questions? Get them all addressed at once.
HomeworkHelpers@ReadingBoosters.com
for quick, personalized coaching
www.MyHomeworkAnswers.com
--Reading Boosters