Question

Jenny has a stack of nickels and a stack of dimes, with n as the number of coins in each stack. Which expression represents the amount of money Jenny has? a) $0.05n + $0.10n b) $0.05n - $0.10n c) $0.10n - $0.05n d) $0.15n

Answer 1

Jenny's total amount of money, with equal numbers of nickels and dimes, is represented by the expression (option a) $0.05n + $0.10n, where n is the number of coins in each stack.

Step-by-step explanation:

The expression that represents the amount of money Jenny has with n as the number of coins in each stack of nickels and dimes is $0.15n. This is because a nickel is worth $0.05 and a dime is worth $0.10. If Jenny has n nickels and also n dimes, the total value of the nickels is $0.05 multiplied by n, and the total value of the dimes is $0.10 multiplied by n. The combined total value is thus (option a) $0.05n + $0.10n, which simplifies to $0.15n.

Answer 2

The expression for Jenny's total amount of money, considering she has an equal number of nickels and dimes, is represented by (d) $0.15n.

Step-by-step explanation:

Jenny has an equal number of nickels and dimes, denoted by n. To calculate the total amount of money she has, we need to add the value of the nickels to the value of the dimes.

One nickel is worth $0.05 and one dime is worth $0.10. If Jenny has n nickels and n dimes, the total value of the nickels is $0.05 times n and the total value of the dimes is $0.10 times n.

Thus, the expression representing the total amount of money Jenny has is $0.05n + $0.10n. When we add these two expressions, we get $0.15n.

Therefore, the correct answer to the question is (d) $0.15n.