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?

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

----> equation A

----> 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

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

2 2/3 hours duhh silly

step-by-step explanation: