20 pennies, 4 nickles, and 2 dimes. 3 ways.
20 + 8 = 28p
There are not 20 ways - there are only 12.
If that's the only denomination you have there's only one way: 20 nickels = $1.
Assuming the 20 are all different, there are 20C11 = 20!/(11!*9!) = 167,960 ways.
20 nickles
40
There are infinitely many answers. Let A be any whole number and let B = -A -20 Then by the closure of integers, B must be a whole number. And A + B = A + (-A - 20) = -20 Since A is arbitrary, there are infinitely many ways of choosing A and so there are infinitely many ways in which two whole numbers will make -20.
There are 41 ways.
about 8
10 ways.10 ways.10 ways.10 ways.
how many ways to make 25p using 1p 2p 5p 10p 20 coins
There are many. Various ways to make a dollar using coins. 100 pennies, 4 quarters, 2 50 cent coins, 1 50 cent coin and 2 quarters, 10 dimes, 20 nickels, and many variations. There are 293 ways to make a dollar but maybe there are more possible ways.
It depends on the currency and so the coinage. For example, there are 20 (Euro) cent coins but not 20 US cents.
11
2 ones i think.... 50, 10, 10 ,10, 10, 10 or 20, 20, 20, 20, 10, 10
How many different ways can you make $3.25 in math