Question

CDs costs $4 each and DVD cost $8 each.

You want to spend less than $40 on all of the gifts.
You need at least 4 gifts altogether.
a. Write and graph a system of linear inequalities to model the scenario.
Give two solutions (combinations) of CDs and DVDs they could sell to meet their goal. Possibility # 1: _______ CDs, ______ DVDs
Possibility # 2: _______ CDs, ______ DVDs

Answer 1

0 and 4

1 and 3

2 and 2

3 and 1

4 and 0

Explanation:

If you need 4 gifts and you want to spend less than $40, then you could buy

1 cd+ 3 dvds for $25

2 cds + 2 dvds for $24

3 cds + 1 dvd for $20

4 cds and 0 dvds for $16

0 cds and 4dvds for $32

Any of these solutions will work