Ask Question
17 December, 09:06

The coin box of a vending machine contains $6.20 in dimes and quarters. There are 32 coins in all. How many of each kind are there?

+3
Answers (1)
  1. 17 December, 09:18
    0
    Let d and q be the number of dimes and quarters respectively.

    10 cents * d + 25 cents * q = 620 cents ($6.20 = 620 cents)

    ⇒ 10d + 25q = 620 (1)

    On the other hand, we have: d + q = 32 (coins) (2)

    From (1) and (2), we solve the set of equations.

    The final answer is d = 12 coins and q = 20 coins.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The coin box of a vending machine contains $6.20 in dimes and quarters. There are 32 coins in all. How many of each kind are there? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers