Question 550952: a teacher is buying school supplies company A is offering a discount for every dollar spent where as Company B is giving a higher discount for ever dollar spent over 20 dollars determine which is a better deal. i cant figure out how to put both of the into an equation form and i dont know if i should use substituion method or elimination because i dont know how much the teacher spent or how much the discount is
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! a teacher is buying school supplies company A is offering a discount for every dollar spent where as Company B is giving a higher discount for ever dollar spent over 20 dollars
determine which is a better deal
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You are right there is so little information here, that it almost useless.
The only thing that you can say for sure is:
Co. A is the better deal for any amt $20 or less.
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After that, the amt of the discounts determine how much more than $20 is Co. B a better deal.
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A poor problem indeed, obviously contrived to torment the students.
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