It depends whether you're putting them side by side or stacking them.
Side by side won't work very well because US nickels are 21.2 mm in diameter but an inch is 25.4 mm.
If you stack them, the answer is almost exactly 13. Each nickel is 1.95 mm thick so there would be 25.4 / 1.95 = 13.03 coins in an inch. No one will miss that 0.03 of a nickel if the answer is rounded.
US nickels are 1.95 mm thick. A US inch is 25.4 mm so you would need 25.4 / 1.95 = 13 coins.
Assume that nickels are measured in diameter, and we want to form the certain number of nickels to form an inch. Let the diameter of the nickel be 22 millimeters, which is 2.2 centimeters. Note that 1 inch = 2.54 centimeters. Then, there is no definite number of nickels that exactly form an inch since: 2.54 centimeters * 1 nickel / 2.2 centimeters = 1.15... nickels [and we obtain the "incomplete" nickel to form an inch]!
20 nickels make a dollar.
18 nickels.
A million nickels make a million. A million of anything makes a million!
.o75
US nickels are 1.95 mm thick. A US inch is 25.4 mm so you would need 25.4 / 1.95 = 13 coins.
If you mean, "How many nickels make a stack 1 inch high?", the answer depends on whether you're using US or Canadian nickels. Coins are measured in mm so you need to know that a US inch is 25.4 mm US nickels are 1.95 mm thick so you'd need 25.4 / 1.95 = 13 coins, almost exactly. Canadian nickels are 1.76 mm thick so you'd need 25.4 / 1.76 = 14.4 coins. You can't have 0.4 of a nickel so you'd need 15 of them to make a stack at least an inch high.
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.
Assume that nickels are measured in diameter, and we want to form the certain number of nickels to form an inch. Let the diameter of the nickel be 22 millimeters, which is 2.2 centimeters. Note that 1 inch = 2.54 centimeters. Then, there is no definite number of nickels that exactly form an inch since: 2.54 centimeters * 1 nickel / 2.2 centimeters = 1.15... nickels [and we obtain the "incomplete" nickel to form an inch]!
20 nickels
20 nickels make a dollar.
2000 nickels
18 nickels.
185 nickels.
200,000 nickels are needed
It takes 100 nickels to make $5.