Problema Solution
Angelica has 15 comic books and each month she buys 3 more comic books. Write an equation representing the number of comic books c she has at the end of the month m.
Answer provided by our tutors
After m = 1 month the number of comic books is:
c = 15 + 3
After m = 2 months the number of comic books is:
c = 15 + 3 + 3 = 15 + 2*3
After m = 3 months the number of comic books is:
c = 15 + 2*3 + 3 = 15 + 3*3
After m months the number of comic books is:
c = 15 + 3m