A piggy bank contains a total of 120 coins in nickels and dimes. find the number of nickels and dimes in the piggy bank if the total amount of money in the pigg

Question

1. The denominator od a fraction is 2 less then three times the numerator. if the numerator is decreased by 3 and the denominator is increased by8, the value of the resulting fraction is 2/. find the original fraction.

 

2. A piggy bank contains a total of 120 coins in nickels and dimes. find the number of nickels and dimes in the piggy bank if the total amount of money in the piggy bank is $10.65

Answer 1

There are two questions included here, but I am assuming you are only asking about the piggy bank since that is the title subject:

 

Let x = number of dimes

     120 - x = number of nickels

 

0.10x + 0.05(120-x) = 10.65

0.10x + 6 - 0.05x = 10.65

0.05x = 4.65

x = 93 dimes

120-x = 120- 93 = 27 nickels