Mindy and Troy combined ate 9 pieces of the wedding cake. Mindy ate 3 pieces of cake and Troy had 1/4 of the total cake.. Write an equation to determine how many pieces of cake (c) there were in total.

Respuesta :

M+T=9
m=3 and t=1/4 of C                                                                                                9=m+1/4 (c)
helps?