10,000 pennies
$12.75/$0.05 = 255 five cent coins
it's possible only if there are 20 cent coins only for that 7 dollars 1 dollar = 100 cents, 100 cents = 5 of 20 cent coins since you need 5 of 20 cent coins for a dollar, you do 7 times of it. 7 X 5 = 35. Therefore, you need 35 of 20 cent coins for 7 dollars. (or there are 35 of 20 cent coins in 7 dollars)
there are 10 in 1 dollar so 50 in 5 dollars
40
Which currency are you using? Twenty-cent coins don't exist in the United States anymore.
How many 10 cent coins will make 2.80?
How many 20c coins make 165.4
60 x 20 cent coins = 12.00 dollars.
25 of course !
5 to a dollar, 50 in all
30 dollars. 60 fifty cent coins equals 30 dollars