Hasan's expression:
- d represents the original price of the book in dollars.
- 0.25d represents the discount amount, calculated by multiplying the original price by 0.25 (25% as a decimal).
- d - 0.25d represents the sale price, obtained by subtracting the discount amount from the original price.
Bella's expression:
- d represents the original price of the book in dollars.
- 0.75d represents the discounted price, calculated by multiplying the original price by 0.75 (100% - 25% as a decimal).
- 0.75d gives directly the sale price of the book.
Hasan plans to choose a book from a section of the store where everything is 25%
off. He writes the expression d−0.25d
to find the sale price of the book if the original price is d
dollars.
Bella correctly writes another expression, 0.75d
, that will also find the sale price of the book if the original price is d
dollars.
Use the drop-down menus to explain what each part of Hasan's and Bella's expressions mean.
1 answer