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Later, Alexis is looking at a different set of coins: this time only dimes and nickels. She has twice as many nickels as dimes, and the total value of the coins is $3.20. How many of each coin does she have now?

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sqdancefan

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Answer:

  • 16 dimes
  • 32 nickels

Step-by-step explanation:

Consider a group of 1 dime and 2 nickels. The value of it is 0.20. The total value of all such groups is 3.20, so there must be ...

  3.20/0.20 = 16 . . . . . groups of coins

That is, there are 16 dimes and 32 nickels.

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