Question
Gabriel is at the grocery store, and wants to figure out his total cost before he gets to the register. He bought 2.5 pounds of apples that are x dollars a pound and 2 bags of lettuce for y dollars each.. Gabriel has $30 to pay for the groceries. What simplified expression would represent the amount of change he should receive? (1 point)
• 2.5x + 2y + 30
• 30 - 2.5x - 2y
• 30 + 2x - 2.5y
• 30 - 2x - 2.5y
• 2.5x + 2y + 30
• 30 - 2.5x - 2y
• 30 + 2x - 2.5y
• 30 - 2x - 2.5y
Answers
GPT-4o mini
To find the amount of change Gabriel should receive after buying his groceries, we need to calculate the total cost of his groceries and then subtract that total from the amount of money he has (which is $30).
The cost of the apples is calculated as:
- 2.5 pounds of apples at x dollars per pound: \(2.5x\)
The cost of the lettuce is:
- 2 bags of lettuce at y dollars each: \(2y\)
So the total cost of the groceries is:
\[ 2.5x + 2y \]
To find the amount of change he should receive, we subtract the total cost from the amount he has:
\[ \text{Change} = 30 - (2.5x + 2y) \]
This simplifies to:
\[ 30 - 2.5x - 2y \]
Thus, the correct expression representing the amount of change he should receive is:
**30 - 2.5x - 2y**
The cost of the apples is calculated as:
- 2.5 pounds of apples at x dollars per pound: \(2.5x\)
The cost of the lettuce is:
- 2 bags of lettuce at y dollars each: \(2y\)
So the total cost of the groceries is:
\[ 2.5x + 2y \]
To find the amount of change he should receive, we subtract the total cost from the amount he has:
\[ \text{Change} = 30 - (2.5x + 2y) \]
This simplifies to:
\[ 30 - 2.5x - 2y \]
Thus, the correct expression representing the amount of change he should receive is:
**30 - 2.5x - 2y**