Final answer:
To solve this problem, we need to establish variables for each type of dish. Given the required ratio between salads and french-fries, and the total amount of chicken, we can set up a system of equations to find the values of each variable.
Step-by-step explanation:
To solve this problem, we need to establish variables for each type of dish. Let's denote the number of chicken sandwiches as 'C', the number of french-fries servings as 'F', and the number of caesar salads as 'S'.
Given that we need to make twice as many salads as we make servings of french-fries, we have the equation: S = 2F.
Since each chicken sandwich uses 2lbs of chicken and each caesar salad uses 1lb of chicken, the total chicken used is: 2C + S = 300.
Finally, we know that the total number of dishes should be 200, so we have the equation: C + F + S = 200.
By solving these equations simultaneously, we can find the values of C, F, and S.