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A man has 29 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 515 cents, how many dimes and how many quarters does he have? The number of dimes equal? Number of quarters equals?

Respuesta :

Answer:

The number of Dimes is 14  and The number of quarters is 15

Step-by-step explanation:

Given as :

The total number of coins = 29

The value of the changes = 515 cents

Let the number of dimes = D

Let the number of quarters = Q

According to question

D + Q = 29                  .......1

And ∵  1 Dimes = 10 cents

           1 Quarter = 25 cents

So, 25 Q + 10 D = 515                  ........... 2

From eq 1 and 2

     ( 25 Q + 10 D ) - ( 10 D +  10 Q  ) = 515 - 290

Or,  15 Q  = 225

∴          Q  = 15

Again ,

     D = 29 - 15

∴    D = 14

Hence The number of Dimes is 14  and The number of quarters is 15 Answer

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