SOLUTION: One burrito and two cheeseburgers have 3060 calories. Two burritos and one cheeseburger have 2760 calories. Find the calorie content of each item: One beef burrito contains__

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: One burrito and two cheeseburgers have 3060 calories. Two burritos and one cheeseburger have 2760 calories. Find the calorie content of each item: One beef burrito contains__      Log On


   

Question 318481: One burrito and two cheeseburgers have 3060 calories. Two burritos and one cheeseburger have 2760 calories. Find the calorie content of each item:

One beef burrito contains____ calories

One cheeseburger contains_____calories
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.1B%2B2C=3060
2.2B%2B1C=2760
Multiply eq. 2 by (-2) and add to eq. 1,
B%2B2C-4B-2C=3060-5520
-3B=-2460
highlight%28B=820%29
Then use either equation to solve for C.
1640%2BC=2760
highlight%28C=1120%29
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A burrito has 820 calories and a chesseburger has 1120 calories.