Respuesta :

mhanifa

Answer:

  • 340 dimes and 232 quarters

Step-by-step explanation:

Let the number of dimes be x and quarters be y.

  • Dime = 10 cents, quarter = 25 cents, total amount is $92 = 9200 cents

We have equations:

  • x + y = 572
  • 10x + 25y = 9200

Multiply the first equation by 10 and subtract from the second one:

  • 10x + 25y - 10x - 10y = 9200 - 5720
  • 15y = 3480
  • y = 3480/15
  • y = 232

Find the value of x:

  • x + 232 = 572
  • x = 572 - 232
  • x = 340

Otras preguntas