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Allison has 72 coins in her wallet. Some are dimes and the rest are nickels. The total value is $4.90. Write a system of equations that models this situation where d = number of dimes and n = number of
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Allison has 72 coins in her wallet. Some are dimes and the rest are nickels. The total value is $4.90.

Write a system of equations that models this situation where d = number of dimes and n = number of nickels.​

User Iesus
by
7.5k points

1 Answer

4 votes

Answer:

  • d + n = 72
  • 10d + 5n = 490

Explanation:

Given

  • Dime = d = 10c,
  • Nickel = n = 5c
  • Total coins = d + n = 72
  • Total value = $4.90 = 490c

Equations

  • d + n = 72
  • 10d + 5n = 490
User Sorav Garg
by
7.4k points
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