assuming 100 is dollars
500
.
$1 = 5
$10 = 50
$100 = 500
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100
There are 100 cents in one dollar. Therefore, nine twentieths of a dollar is equal to 9/20 x 100 = 45 cents.
A nickel is worth 5 cents. If by "20" you mean 20 cents, you need 20 / 5 = 4 nickels. If you mean 20 dollars, a dollar is 100 cents so $20 = 2000 cents, and you'd need 2000 / 5 = 400 nickels.
$4. A nickel is 5 cents, so $1 is 100 cents / 5 cents = 20 coins. Finally, 80/20 = 4.
A nickel is worth 5 cents. A dollar is worth 100 cents. 100/5=20. Twenty nickels make up a dollar.Twenty nickels make a dollar.20