SOLUTION: Cruz decides that he would like to purchase some CD's. He knows that a new CD cost $15 and a used CD cost $8. If he bought 4 times as many used CD's as he did new CD's and used and

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Cruz decides that he would like to purchase some CD's. He knows that a new CD cost $15 and a used CD cost $8. If he bought 4 times as many used CD's as he did new CD's and used and      Log On


   

Question 490029: Cruz decides that he would like to purchase some CD's. He knows that a new CD cost $15 and a used CD cost $8. If he bought 4 times as many used CD's as he did new CD's and used and spent a total of $153, what are the equations?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
He knows that a new CD cost $15 and a used CD cost $8. If he bought 4 times as many used CD's as he did new CD's and used and spent a total of $153, what are the equations?
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Equations:
Quantity Eq: used = 4*new
Value Eq::: 15new+8used = 153 dollars
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Cheers,
Stan H.