Respuesta :

Let S represent the cost of a small box, and L represent the cost of a large box.

Matt's sale can be represented by the equation
  3S +14L = 203
Ming's sale can be represented by the equation
  11S +11L = 220

There are a number of ways to solve a pair of equations. One is to graph them. The graph shows the costs to be ...
  The cost of a small box of oranges is $7.
  The cost of a large box of oranges is $13.
Ver imagen sqdancefan