A dollar is equivalent to 100 pennies. This is because one penny is worth one cent, and there are 100 cents in a dollar. Therefore, to determine how many pennies make a dollar, you simply multiply the number of cents (100) by the value of a penny (1 cent), resulting in 100 pennies for every dollar.
This relationship is fundamental in understanding U.S. currency, as it shows the basic division of the dollar into smaller denominations. So, next time you have a dollar bill and want to break it down into pennies, remember: you’ll need 100 of them!