Mrs. Ventura charges $25 for a basic cake that serves 12 people. A larger cake costs an additional $1.50 per serving. The total cost can be given by y = 1.5x + 25, where x represents the number of additional slices.

Question

Mrs. Ventura charges $25 for a basic cake that serves 12 people.  A larger cake costs an additional $1.50 per serving.  The total cost can be given by y = 1.5x + 25, where x represents the number of additional slices.

anonymous · Answer

Y must be in dollars.  25 is in dollars and 1.5 is dollars divided by serving.  You have to make 1.5*x be in dollars so you have to get rid of the servings in the denominator.  So x must be what?