Answer:
Step-by-step explanation: To determine the percentage of a dollar represented by a specific coin combination, you need to divide the value of the coin combination by one dollar and then multiply by 100 to express the result as a percentage.
For example:
A quarter (25 cents) is 25/100 = 0.25 dollars.
A dime (10 cents) is 10/100 = 0.10 dollars.
A nickel (5 cents) is 5/100 = 0.05 dollars.
If you have a combination of a quarter, a dime, and a nickel, the total value is 0.25 + 0.10 + 0.05 = 0.40 dollars.
To find the percentage, you'd do (0.40 / 1) * 100 = 40%.
So, the combination of a quarter, a dime, and a nickel represents 40% of a dollar.
