Answer: 10 pounds of potatoes, and with $3.00, she cannot afford any more pounds after the first three pounds.
Explanation:
Let's break down the problem step by step:
1. With $6.00 to spend:
- The first pound costs $1.50, the second pound costs $1.14, and the third pound costs $1.05.
- After these three pounds, Janice has spent $3.69 ($1.50 + $1.14 + $1.05).
- She has $6.00 - $3.69 = $2.31 left to spend on potatoes.
- The subsequent pounds cost $0.30 each.
- So, Janice can buy additional pounds: $2.31 / $0.30 per pound ≈ 7.7 pounds.
- However, since she can only purchase whole pounds, she will buy 7 additional pounds.
- In total, she will purchase 3 (first three pounds) + 7 (additional pounds) = 10 pounds of potatoes.
2. With $3.00 to spend:
- The first pound costs $1.50, the second pound costs $1.14, and the third pound costs $1.05.
- After these three pounds, Janice has spent $3.69 ($1.50 + $1.14 + $1.05).
- She has $3.00 - $3.69 = -$0.69, which means she cannot afford any more pounds.
In summary, with $6.00, Janice can purchase 10 pounds of potatoes, and with $3.00, she cannot afford any more pounds after the first three pounds.
