Answer
Each cake should be cut into 11 slices.
Step-by-step explanation
We are asked to calculate the number of slices per cake. We are given that
x = number of people at the dance = 55 (from the question)
y = number of slices per cake = ?
a = number of slices each person will eat = 1 (Also from the question)
We are also told that the number of cakes is 5.
We are then asked to use the formula
y = xa/5
We then make a substitution
y = (55 × 1)/5
y = (55/5) = 11 slices per cake.
Hope this Helps!!!