Question

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 Use the drop-down menus to explain what each part of Adam's and Rena's expressions mean

Answer 1

Adam is taking the original price minus 75% of the original price, while Rena is taking the original price times 25% which is what you would be paying. Both are correct but Renas is more efficient.

Explanation:

Answer 2

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`

Where d is the original price is d dollars.

75% off on d is represented as 0.75d.

And 0.75d is subtracted from original price d to get the price after discount. Hence, the equation forms
`d-0.75d`

For example:

Let the price of an item be = $100

So, price will be =
`100-0.75(100)=25` dollars

---------------------------------------------------------------------------------------

Rena correctly writes another expression,
`0.25d`

This means that 25% of d will be charged.

This is also correct.

Same example as above.

Let the price be = $100

Price will be =
`0.25*100=25` dollars