A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 20 books and
each large box can hold 40 books. There were twice as many large boxes sent as small
boxes, which altogether can hold 400 books. Graphically solve a system of equations
in order to determine the number of small boxes sent, X, and the number of large
boxes sent, y.
y Click twice to plot each line. Click a line to delete it.
20
19
18
17
16
15
14
13
12
11
400