2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item

Question

2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item

Answer 1

2C + F = 1340 F=1340-2C

3C + 2F = 2210

3C +2(1340-2C) = 2210

C = 2680-2210 = 470 calories in a cheeseburger

F = 1340-2(470) = 1340-940 = 400 calories in a small fries

3(470) + 2(400) = 1410+800 = 2210

2(470) + 400= 940+400 =1340