Question

An online bookstore sells novels and magazines.

Each novel sells for $4, and each magazine sells for
$1. If Sadie purchased a total of 11 novels and
magazines that have a combined selling price of $20.
how many novels did she purchase?

Answer 1

Explanation:

3

Answer 2

The number of novels purchased was 3

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

`x+y=11` ----> equation A

`4x+y=20` ----> 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