Question

Tony misplaced 777 stamps from his collection. He knows that each stamp of his is worth $0.15, and that the total value of them is now only $5.55. How many stamps did he originally have? *Please include equation*

Answer 1

Let s = number of stamps originally Then, 0.15(s - 7) = 5.55           0.15s - 1.05 = 5.55                       0.15s = 6.60                              s = 44 stamps