5) you need to buy some pencils and an eraser. You can spend no more than $5. The eraser costs $1 and the pencils cost $0.25 each. a) Write an inequality to represent the situation. Be sure to define your variable. b) Solve the inequality to find the maximum number of pencils you can buy.

Respuesta :

you can buy 1 eraser and 16 pencils
Let x = # of pencils, and let y = # of erasers.

[tex]0.25x + y \leq 5[/tex]

Since you are going to buy 1 eraser, you can subtract one from both sides:
[tex]0.25x \leq 4[/tex]

Then, just solve for x:
[tex]x = 16[/tex]