Question

Rich bought 5 cupcakes and one pie. He knows his total bill and knows the pie was $6.89, but he wants to find the price of the cupcakes. How can he determine the price of each cupcake?

Answer 1

Let total bill be T, price of each cupcake be p.

----> 5p +6.89 = T
solve for p

---> 5p = T - 6.89

$==\ \textgreater \ p = \frac{T-6.89}{5}$
Now all that is left is to substitute in the total bill.