Question

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
I/ dollars,
Use the drop-down menus to explain what each part of Hasan's and Bella's
expressions mean.

Answer 1

Answers:

Hasan's Expression: d - 0.25d

• d: Original price
• 0.25: percent discount
• 0.25d: amount of discount
• d - 0.25d: sale price

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Bella's Expression: 0.75d

• 0.75: percent of original price
• d: original price
• 0.75d: sale price

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Step-by-step explanation:

The variable d stands for the original price. The store is offering a 25% sale, which means that Hasan will save 25% of the original price. This means 0.25d represents the amount he saves (aka the discount amount).

For instance, let's say d = 100 is the original price. 25% of this is 0.25d = 25 dollars. So if the book is originally $100, then he saves $25.

As you can probably guess, the 0.75 comes from 1 - 0.25 = 0.75; it indicates that if Hasan saves 25%, then he still has to pay the remaining 75%

Notice how d - 0.25d = 1d - 0.25d = (1-0.25)d = 0.75d which points to the sale price being 75% of the original price d.