what 23 coins make up one dollar?

Answer 1

Answer #1 is incorrect - it only adds up to 90 cents.

10 pennies
11 nickles
1 dime
1 quarter
--------
= 23 coins.

+ .10
+ .55
+ .10
+ .25
-------
$1.00

Answer 2

Let's work this out (or try to): You'll need a multiple of 5 in pennies if you're going to use them and since the most we can have is 20 pennies (25 would START with too many coins), then:

20 pennies=20 cents
1 half-dollar=50 cents
1 quarter=25 cents
1 nickel=5 cents
______________
23 coins=$1.00

What if we use 15 pennies and 8 more coins?

15 pennies=15 cents
1 half-dollar= 50 cents
7 nickels=35 cents
________________
23 coins=$1.00

If we only use 10 pennies and 13 more coins, we can't use a half-dollar.

But what if you don't allow half-dollars? It gets more complicated. Starting with 20 pennies again, you have 3 coins left to make 80 cents and that won't happen without the half-dollars.

So we'll back off to 15 pennies and 8 more coins:

15 pennies=15 cents
1 quarter=25cents
4 dimes=40 cents
3 nickels=20 cents
_______________

23 coins=$1.00

With 10 pennies and 13 more coins:

10 pennies=10 cents
1 quarter=25 cents
1 dime=10 cents
11 nickels=55 cents
_________________
23 coins= $1.00

OR:

10 pennies=10 cents
5 dimes=50 cents
8 nickels=40 cents
________________
23 coins=$1.00


If we go down to 5 pennies and 18 coins:

5 pennies=5 cents
1 dime=10 cents
17 nickels=85 cents
________________
23 coins=$1.00

What if we DON'T use pennies? Well, the next smallest coin is a nickel and, at 5 cents each, 20 of them make $1.00 and we still have three coins to use.

BUT... what if we don't allow either half-dollars or QUARTERS?

Well, 20 pennies and 3 coins to make 80 cents won't happen. So we move to 15 pennies and 8 more coins. But if we only use dimes and nickels, we'll need more than 8 coins to make 85 cents.

So, 10 pennies and 13 coins:

10 pennies=10 cents
5 dimes=50 cents
8 nickels=40 cents
_______________
23 coins=$1.00

With only 5 pennies and 18 coins

5 pennies=5 cents
1 dime=10 cents
17 nickels=85 cents
_________________
23 coins=$1.00

Can we do it without half-dollars, quarters OR dimes? Let's see...

20 pennies and three nickels? No
15 pennies and 8 nickels? No
10 pennies and 13 nickels? No
5 pennies and 18 nickels? No

Did I get it right? You might want to double-check the addition - I was getting loopy near the end.

Answer 3

10 Pennies
11 Nickles
1 Dime
1 Quarter

Answer 4

2 quarters,1 dime,15 pennies,5 nickles

Answer 5

The first answer is correct!!! Good Job

Answer 6

five pennies.
one dime.
17 nickles.