Mindy and troy ate total of 9 pieces of the wedding cake. mindy ate 3 pieces and troy ate 1/4 of the total cake. write an equation to determine how many pieces of cakes (c) were in total.

I. x + y = 9

II. x = 3

III. y/c = 1/4 --> y = 1/4*c

II and III in I

3 + 1/4*c = 9 --> c = 24

answer: i don't understand. what are the options

step-by-step explanation:

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: