SOLUTION: For lunch Robert had a sandwich and two glasses of milk for a total of 660 calories. The sandwich had 2.4 times as many calories as a glass of milk. How many calories were in the s

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: For lunch Robert had a sandwich and two glasses of milk for a total of 660 calories. The sandwich had 2.4 times as many calories as a glass of milk. How many calories were in the s      Log On


   

Question 269587: For lunch Robert had a sandwich and two glasses of milk for a total of 660 calories. The sandwich had 2.4 times as many calories as a glass of milk. How many calories were in the sandwich?
PLEASE PLEASE HELP
i want to do well!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
it is easier to solve for the milk first

let x=milk

" The sandwich had 2.4 times as many calories as a glass of milk" ___ 2.4x

"a sandwich and two glasses of milk for a total of 660 calories" ___ 2.4x + 2x = 660

4.4x = 660 ___ x = 150

sandwich = 2.4x = 360