Final answer:
To find the new price of an item after a 10% discount on a $25 item, calculate 10% of $25 which is $2.50, and subtract it from $25 resulting in a new price of $22.50.
Step-by-step explanation:
To calculate the new price of an item after a discount, you first need to determine the amount of the discount and then subtract that from the original price. The original price given is $25 and the discount rate is 10%. To find the discount amount, convert the percentage to a decimal by dividing by 100, which makes it 0.10, and then multiply by the original price:
$25 × 0.10 = $2.50
Now, subtract the discount amount from the original price to find the new price:
$25 - $2.50 = $22.50
Therefore, the new price of the item, after applying a 10% discount, is $22.50.