This is not possible without also using a half-dollar coin. Using only quarters, dimes, nickels and pennies, $1.50 can be made with six or eight coins, but not with seven.
Know MoreUsing six quarters would create a total of $1.50. With only five quarters, the total would be $1.25. This requires coming up with the additional 25 cents using two coins that are not quarters. The highest value that could be achieved is 20 cents using two dimes, thus the task is impossible. It becomes possible if the half-dollar coin is introduced. The solution is then one half-dollar, three quarters, two dimes and one nickel.
Learn more about ArithmeticThere are 10 combinations of quarters, dimes and nickels that can be used to pay 50 cents in change. Each combination uses different quantities of each coin.
Full Answer >There are 720 different combinations for a seven-digit number. This answer can be found using the (n[n-1][[n-2] ... to k factors)/k!, where n is the possible number of digits and k is the number of digits in the number. For a seven-digit number, the formula is 10!/7!.
Full Answer >In order to add using a 100-number chart, start on the first given number and move a finger or place holder along the chart as many spaces as the number being added to end on the correct sum. Because addition is commutative, it does not matter which number is used for the starting position or what number is used to move forward on the chart.
Full Answer >Three quarters, five dimes, five nickels and five pennies do not add up to $2. The total value of this combination of coins is $1.55.
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