SOLUTION: The cost of eight CDs and fifteen DVDs is $186.31; and the cost of nine DVDs and thirteen CDs is $167.09. How much do a CD and a DVD cost?

Algebra ->  Linear-equations -> SOLUTION: The cost of eight CDs and fifteen DVDs is $186.31; and the cost of nine DVDs and thirteen CDs is $167.09. How much do a CD and a DVD cost?      Log On