we need
|500m - 200t| <= 5
where m and t are the rates in $/minute
You have been hired by a cell phone company to create two rate plans for customers, one that benefits customers with high usage. The cell phone rates may compare usage of minutes or usage of text messaging. At 500 minutes or 200 text messages, both plans should be within $5 of each other. (There can be multiple answers. I just need the equation.)
1 answer
1 answer