If you mean "how many nickles do you need to make one dollar", the answer is 20.
It takes 100 nickels to make $5.
2000 nickels
A nickel is 5 cents and a dollar is 100 cents, so you need 100/5 = 20 coins.
A stack of 1303 nickels.
If you have to ask then you can't afford it.
how many nickels would it take to stack nickels 100 inches tall
20 nickels make $1 (0.20 x 5 = 1.00) so $100 would be 100 x 20 = 2000 nickels.
It takes 100 nickels to make $5.
2000 nickels
A nickel is 5 cents and a dollar is 100 cents, so you need 100/5 = 20 coins.
$100 can be made up without any nickels at all. If there were some peculiar reason that you wanted to pay someone $100 all in the form of nickels, then you would need to give him 2,000 of them in order to settle the debt.
A stack of 1303 nickels.
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
100 \
According to the US Mint, nickels are 1.95 mm thick. A US inch is equivalent to 25.4 mm so 100 inches are 2540 mm.Dividing those two numbers, 2540/1.95 = 1302.56, so you'd need 1303 nickels to make a stack at least 100 inches tall.
If you have to ask then you can't afford it.
Nickels are 1.95 mm thick, although that could vary depending on wear. 1.95mm is about 0.076-0.077 inches. So, it would be about 1298-1316 nickels.