SOLUTION: A coin jar contains nickels, dimes, and quarters.
There are 47 coins in all.
There are 12 more nickels than quarters.
The value of the dimes is $3.70 less than the value o
Algebra.Com
Question 1107799: A coin jar contains nickels, dimes, and quarters.
There are 47 coins in all.
There are 12 more nickels than quarters.
The value of the dimes is $3.70 less than the value of the quarters.
How many coins of each type are in the jar?
Found 2 solutions by josgarithmetic, addingup:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
n, d, q
nickels dimes quarters
-
-
-
-
-
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
n + d + q = 47
25q - 10d = 370
n = q + 12
25q - 370 = 10d
5q - 74 = 2d
d = 5q/2 - 37
n + d + q = 47
(q + 12) + ((5q/2) - 37) + q = 17
2q + (5q/2) + 12 - 37 = 47
2q + (5q/2) = 47 - 12 + 37
2q + 5q/2 = 72
4q + 5q = 144
9q = 144
q = 16
n = 28
d = 3
RELATED QUESTIONS
A jar contains nickels, dimes, and quarters. There are 105 coins with a total
value of... (answered by josmiceli)
A coin jar contains nickels, dimes, and quarters. There are 66 coins in all. There are 8... (answered by stanbon,ikleyn,greenestamps,richwmiller)
A coin jar contains nickels, dimes and quarters. There are 46 coins in all. There are... (answered by rwm)
A coin collection contains nickels, dimes, and quarters. There are twice as many dimes as (answered by ikleyn)
a coin collection contains nickels dimes quarters there are twice as many dimes as... (answered by dabanfield@earthlink.net)
a jar contains $8.75 in nickels, dimes, and quarters. If there are two times as many... (answered by CubeyThePenguin)
A child's piggy bank contains nickels, dimes, and quarters. There are twice as many... (answered by jorel1380)
A coin bank contains nickels, dimes, and quarters totaling $5.45. If there are twice as... (answered by mathmaven53)
cody's bank contains $4.30 in nickels, dimes and quarters there are 38 coins in all, with (answered by stanbon)