Final answer:
To find out how many Snickers and KitKat bars Mrs. Sweettooth bought, we can solve a system of equations using the count and cost information.
Step-by-step explanation:
Let's assume that Mrs. Sweettooth bought x packages of Snickers and y packages of KitKat bars.
From the given information, we can set up two equations:
- 48x + 36y = 204 (equation 1) - representing the total count of candy bars
- 27.50x + 21.50y = 119.50 (equation 2) - representing the total cost of the candy bars
To solve this system of equations, we can use a method called substitution:
- Rearrange equation 1 to solve for x: x = (204 - 36y)/48
- Substitute the value of x in equation 2: 27.50[(204 - 36y)/48] + 21.50y = 119.50
- Simplify and solve for y
- Once y is found, substitute its value back into equation 1 to find the value of x
By solving this system of equations, we can determine the number of Snickers and KitKat bars that Mrs. Sweettooth bought.