Answer:
The number of novels purchased was 3
Step-by-step explanation:
Let
x ----> the number of novels purchased
y ---> the number of magazines purchased
we know that
Sadie purchased a total of 11 novels and magazines that have a combined selling price of $20
so
[tex]x+y=11[/tex] ----> equation A
[tex]4x+y=20[/tex] ----> equation B
Solve the system of equations by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
The solution is the point (3,8)
see the attached figure
therefore
The number of novels purchased was 3
