Adam plans to choose a video game from a section of the store where everything is 75% off. He writes the expression d−0.75d to find the sale price of the game if the original price is d dollars.
Rena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars.
Drag each description to explain each part of both expressions.
CLEAR CHECK
d−0.75d
Adam's expression
0.25d
Rena's expression
d
0.25
0.75
d
Original price of video game
0.75d
0.25d
d−0.75d
Sale price of video game
d: Original price of the video game
0.25: Rena's expression
0.75: Adam's expression
d - 0.75d: Adam's expression
0.25d: Rena's expression
d−0.75d
Adam's expression:
- "d" represents the original price of the video game.
- "0.75d" represents 75% of the original price, which is the discount amount.
- Subtracting "0.75d" from "d" gives the sale price of the video game.
0.25d
Rena's expression:
- "d" represents the original price of the video game.
- "0.25d" represents 25% of the original price, which is the sale price after the discount.
Adam's expression is d - 0.75d. In this expression, "d" represents the original price of the video game. The "0.75d" part represents 75% of the original price, which is the discount applied to the original price. Subtracting "0.75d" from "d" gives us the sale price of the video game.
Rena's expression is 0.25d. In this expression, "d" again represents the original price of the video game. The "0.25d" part represents 25% of the original price, which is equivalent to the 75% discount applied to the original price. Therefore, "0.25d" also gives us the sale price of the video game.