Problema Solution

Kayla paid $127.20, including 6% tax, for her graphing calculator. How much did the calculator itself cost?

Answer provided by our tutors

The net cost is US$118.9 for the calculator

 

Solution: Set the cost is X for the calculator 

               X (1 + 6%) = 127.20

X = 127.2 / 1.06

              X = 120.