SOLUTION: COIN PURSE CONTAINS A MIXTURE OF 15 COINS IN DIMES AND QUARTERS. THE COINS HAVE A TOTAL VALUE OF $3.30. DETERMINE THE NUMBER OF DIMES AND THE NUMBER OF QUARTERS IN THE PURSE.

Question 164537: COIN PURSE CONTAINS A MIXTURE OF 15 COINS IN DIMES AND QUARTERS. THE COINS HAVE A TOTAL VALUE OF $3.30. DETERMINE THE NUMBER OF DIMES AND THE NUMBER OF QUARTERS IN THE PURSE.
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

--------------------> EQN 1
Also,
---------------> EQN 2
In EQN 1, we get,
-------------------------> EQN 3
Subst, EQN 3 in EQN 2:

Via EQN 3,

In doubt? Go back EQN 2,

Thank you,
Jojo
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