Write an equation to represent the value of his stamp collection in terms of the number of stamps, s, that he had originally, and find the value of s.

Question

Tony had a certain number of stamps that were each worth $0.15. He misplaced 7 stamps. He found that the total value of his stamp collection was now $5.55.

 

 

 

 

 

( I need this answered asap! Thank you!) 

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