SOLUTION: In a jar, there are 45 nickels. The number of pennies and nickels together equal the number of dimes. There are 2 quarters for every 3 nickels and 2 dimes for every quarter.

Algebra.Com
Question 1107195: In a jar, there are 45 nickels. The number of pennies and nickels together equal the number of dimes. There are 2 quarters for every 3 nickels and 2 dimes for every quarter.
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
pennies=x
dimes=x+45
2 quarters for 3 nickels means 30 quarters
2 dimes for every quarter means 60 dimes
pennies has to be 15
Answer by ikleyn(52925)   (Show Source): You can put this solution on YOUR website!
.
1.  Since "there are 2 quarters for every 3 nickels", you can easily determine the number of quarters.

    For it, divide 45 by 3 to get 15 and then multiply by 2 to get the number of quarters: 30.



2.  Since "There are . . . 2 dimes for every quarter", the number of dimes is 2*30 = 60.



3.  #Pennies + #Nickels = #Dimes = 60  ====>

    #Pennies + 45                = 60  ====> #Pennies = 60 - 45 = 15.



Answer.  15 pennies,  45 nickels (given),  60  dimes  and  30 quarters.


RELATED QUESTIONS

A jar containing pennies, nickels and dimes is worth $8.40. The number of dimes is six... (answered by Mathtut,josmiceli)
a box contains nickels, dimes and pennies worth $5.56. The number of pennies is one more... (answered by ankor@dixie-net.com)
A big jar contains four times as many quaters as pennies, three times as many nickels as... (answered by stanbon,uma)
A box contains nickels, dimes and pennies worth $8.40. The number of dimes is six less... (answered by Fombitz)
A box contains nickels, dimes and pennies worth $8.40. The number of dimes is six less... (answered by josgarithmetic,MathTherapy,ikleyn)
A jar of 45 coins consists only of nickels, dimes, and quarters, with a face value of... (answered by ikleyn)
In Jacks piggy bank, there is a collection of pennies, nickels, dimes, and quarters which (answered by greenestamps,josgarithmetic)
A jar with pennies, nickels, and dimes contains a total of 55 coins worth $3.23. How many (answered by ptaylor)
You have quarters, dimes, and nickels in a jar. There are twice as many quarters as... (answered by solver91311)