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A jar contains only pennies, nickels, and dimes. The number of dimes is one more than the number of nickles, and the number of pennies is six more than the number of nickels. How many of each denomination are in the jar, if the total value is $4.80?

 Jul 22, 2020
 #1
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30 dimes, 29 nickels, and 35 pennies

 Jul 22, 2020
 #2
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Let the numbe of nickles = N

The number of pennies =N + 6

The number of dimes  = N + 1

 

0.01 *[N + 6] + 0.05N + 0.10*[N+1] =4.80, solve for N

 

N = 29 Nickles

29 + 6 = 35 Pennies

29 + 1 =30 Dimes.

 Jul 22, 2020

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