A and B agree to share the cost of an $18 pizza based on how much each would eat. B ate 3/2 of the pizza that A ate. How much should A and B each pay?
A=
B=
+36916 A = pizza eaten by A
3/2 A = pizza eaten by B
A + 3/2 A = 1 whole pizza
5/2 A = 1
A = 2/5 of the pizza so: 2/5 * $ 18 = $ 7.20 = A share and B pays the rest = $ 10.80
