SOLUTION: Please help thank you thank you very much!!!!!!! 2. Translate the following into a system of equations, then solve it:A customer walks into an electronics store and buys five MP

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help thank you thank you very much!!!!!!! 2. Translate the following into a system of equations, then solve it:A customer walks into an electronics store and buys five MP      Log On


   

Question 169710This question is from textbook elementary and Intermediate algebra concepts and application
: Please help thank you thank you very much!!!!!!!
2. Translate the following into a system of equations, then solve it:A customer walks into an electronics store and buys five MP3 players and eight sets of headphones, paying $840. A second customer buys three MP3 players and four sets of headphones, and pays $480. How much does an MP3 player cost? How much does a set of headphones cost? This question is from textbook elementary and Intermediate algebra concepts and application

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
lets call the cost of mp3 player m and the cost of headphones h
:
5m+8h=840....eq 1
3m+4h=480....eq 2
:
you now have (2) a system of linear equations
:
solving we have highlight%28m=120%29dollars a piece for mp3 players
................highlight%28h=30%29dollars a piece for headphones
:
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++5%5Cm+%2B+8%5Ch+=+840%2C%0D%0A++++3%5Cm+%2B+4%5Ch+=+480+%29%0D%0A++

Any system of equations:


has solution

or



(m=120, h=30}