3. Modeling with Linear Systems
Sign In
Let's assume x represents the number of packs of printer paper and y represents the number packs of graph paper. Now, we will write an inequality for the number of packs and the cost of packs. Remember that the symbols for at least and at most are ≥ and ≤, respectively.
The Number of Packs | The Cost of Packs | ||
---|---|---|---|
Verbal Expression | Algebraic Expression | Verbal Expression | Algebraic Expression |
Number of packs of printer paper | x | Cost of x packs of printer paper | $2⋅x |
Number of packs of graph paper | y | Cost of y packs of graph paper | $3⋅y |
Add the number of packs of printer and graph paper | x+y | Add the costs of packs of printer and graph paper | $2⋅x+$3⋅y |
Setup the inequality | x+y≥6 | Setup the inequality | $2⋅x+$3⋅y≤$27 |