Algebra

posted by .

You have a piggy bank containing a total of 85 coins in dimes and quarters. If the piggy bank contain $14.50, how many dimes are there in the piggy bank?


Interest=principal multiply Rate multiply 1, or interest=principal multiply rate.

  • Algebra -

    d = number of dimes
    .10d = value of dimes
    85 - d = number of quarters
    .25(85 - d) = value of quarters

    0.10d + .25(85 - d) = 14.50
    Solve for d, number of dimes
    85 - d = number of quarters

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    How would you solve this problem?? A piggy bank contains only nickels and dimes. In all there are 42 coins with a total value of $3.85. How many nickels are in the piggy bank?
  2. Math

    Toni has a piggy bank filled with nickels, dimes and quarters. She has a total of $3.00. If she has fewer than 12 coins, What combination of coins could she have in her bank?
  3. Algebra

    A piggy bank contains only nickels and dimes. In all there are 42 coins with a total value of $3.85. How many nickels are in the piggy bank?
  4. Learning Chater School

    Dana has a piggy bank(she is just starting to save money in her piggy bank). 1- All of the coins in her bank expect two quarters. 2- All of the coins in her bank except two are nickels 3- All ofthe coins in her bank except two are …
  5. Algebra

    Alycia's pggy bank has dimes and quarters in it. The numbers of dimes is four less than three times the number of quarters. If the total value of the coins is $7.85, how many dimes are in the piggy bank?
  6. algebra

    There are 7 coins in a piggy bank. The coins are all quarters and dimes. All together the total amount of money in the bank is $1.15. How many of each coin are in the piggy bank.
  7. algebra 1

    There are 16 coins in a piggy bank. The coins are all nickels and dimes. All together the total amount of money in the bank is $1.05. How many of each coin are there?
  8. Algebra 2 semester2

    A piggy bank contains $5.60 in nickels and dimes. The number of nickels is 8 less than 3 times the dimes. How many nickels and dimes are there in the piggy bank?
  9. math

    When a child breaks open her piggy bank, she finds a total of 76 coins, consisting of nickels, dimes, and quarters. The total value of the coins is $9. If the nickels were dimes, and the dimes were nickels, the value of the coins would …
  10. Math

    sheldon has 50 dimes in his piggy bank. there are 30 more nickels than dimes. there are 200 more pennies then nickels. how many coins are in sheldon's piggy bank?

More Similar Questions