• Matematika
  • ALJABAR Kelas 10 SMA
  • Sistem Persamaan Linear
  • Sistem Persamaan Linear Tiga Variabel

Video solusi : A vending machine coin box contains $21.90 in nickels, dimes, and quarters. There are 149 coins in all and there are twice as many quarters as there are nickels. How many of each type of coin does the box contain?

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