SOLUTION: Christina went to a soap box derby with 12 coins in her pocket. They totaled $1.20. What could these coins be? Give 3 different answers.

Question 902751: Christina went to a soap box derby with 12 coins in her pocket. They totaled $1.20. What could these coins be? Give 3 different answers.
Found 2 solutions by josmiceli, richwmiller:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Consider quarters, dimes, nickels and pennies
You can't have 5 quarters, since that would
equal $1.25
4 quarters = $1.00
coins are left
-----------------------------
8 nickels = 40 cents which is too much money
5 pennies and 3 dimes = 35 cents- still too much
5 pennies and 3 nickels = 20 cents- exactly right
-----------------------------
So, the answer is:
4 quarters
5 pennies
3 nickels
12 coins = $1.20
------------
What about 2 quarters and 7 dimes?
That's only 9 coins
2 quarters, 4 nickels, 5 dimes
That's 11 coins
2 quarters
6 nickels
4 dimes
That's 12 coins = $1.20
-----------------------
What about 1 quarter and 11 nickels?
That's 80 cents
1 quarter, 2 dimes, 9 nickels
That's 90 cents
1 quarter, 4 dimes 7 nickels
That's $1.00
1 quarter
6 dimes
5 nickels
That's only $1.10
-------------
What about:
1 quarter
8 dimes
3 nickels
That's $1.20
-------------
That's 3 ways

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Therr are 9 ways.
way1 0 0 120 0 0 0
12dimes
way2 0 15 80 25 0 0
3nickels
8dimes
1quarters
way3 0 30 40 50 0 0
6nickels
4dimes
2quarters
way4 0 40 30 0 50 0
8nickels
3dimes
1halves
way5 0 45 0 75 0 0
9nickels
3quarters
way6 5 0 40 75 0 0
5pennies
4dimes
3quarters
way7 5 10 30 25 50 0
5pennies
2nickels
3dimes
1quarters
1halves
way8 5 15 0 100 0 0
5pennies
3nickels
4quarters
way9 10 0 10 0 0 100
10pennies
1dimes
1dollars

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