Respuesta :

sqdancefan

9514 1404 393

Answer:

  13 nickels

Step-by-step explanation:

Let n represent the number of nickels Bob has. Then 18-n is the number of dimes, and the total value (in cents) is ...

  5n +10(18-n) = 115

  -5n +180 = 115 . . . simplify

  65 = 5n . . . . . add 5n-115

  13 = n . . . . . . . divide by 5

Bob has 13 nickels.

ThatGuyInADogCostume

Answer:

well... if we don't know how many dimes then we can only guess how many nickels... since it is nickelS AND dimeS, it could be anything from 14 nickels and 2 dimes to 2 nickels and 17 dimes

Step-by-step explanation:

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