Foam fingers sold for $5. Spirit bracelets for $4. You sold 40 more foam fingers than bracelets and earned $965. Write a system of equations to describe this situation.

Question

Solve this system using as least 2 different methods. Explain each method.

Answer 1

Let F and B be the two variables: the number of each that were sold.

Your sytemn of equations is
F - B = 40
5F + 4B = 965

Now use what you have learned to solve them. Try substitution first.