SOLUTION: If you buy 7 hamburgers and 3 sodas at a restaurant, you receive $1 change from a $20 bill. If you buy 8 hamburgers and 2 sodas you receive $0.50 in change from a $20 bill. How m

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: If you buy 7 hamburgers and 3 sodas at a restaurant, you receive $1 change from a $20 bill. If you buy 8 hamburgers and 2 sodas you receive $0.50 in change from a $20 bill. How m      Log On


   

Question 388053: If you buy 7 hamburgers and 3 sodas at a restaurant, you receive $1 change from a $20 bill. If you buy 8 hamburgers and 2 sodas you receive $0.50 in change from a $20 bill. How much change will you receive from a $5 bill if you buy 1 hamburger and 1 soda?
Thanks.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the price of one hamburger. Let represent the price of one soda.

Then from the information given we can write:



and



Solve the system for and , then compute

John

My calculator said it, I believe it, that settles it
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