SOLUTION: Considering an 8 oz serving size, 1 serving each of brewed coffee, Red Bull energy drink and Mountain Dew soda contain 197mg of caffeine. One serving of brewed coffee has 6mg more

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Considering an 8 oz serving size, 1 serving each of brewed coffee, Red Bull energy drink and Mountain Dew soda contain 197mg of caffeine. One serving of brewed coffee has 6mg more       Log On


   

Question 930185: Considering an 8 oz serving size, 1 serving each of brewed coffee, Red Bull energy drink and Mountain Dew soda contain 197mg of caffeine. One serving of brewed coffee has 6mg more caffeine than two servings of Mountain Dew. one serving of Red Bull contains 37 mg less than one serving each of brewed coffee and Mountain Dew. Find the amount of caffeine in one serving of each beverage.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
c, coffee
b, bull
d, dew

c+b+d=197, but your description about this is not good.
c=6+2d and b=-37+c+d.

system%28c%2Bb%2Bd=197%2Cc=2d%2B6%2Cb=c%2Bd-37%29

Do you need help with solving the system?