Final answer:
Spud will purchase 5 pounds of potatoes because the total value he assigns to them is less than the total amount he can spend.
Step-by-step explanation:
To calculate how many pounds of potatoes Spud will purchase, we need to determine the maximum amount he can spend on potatoes. Given that Spud has $4.00 and potatoes cost $0.75 per pound, we can divide the total amount available by the cost per pound: $4.00 รท $0.75 = 5.33 pounds (rounded down to 5 pounds).
Now, let's calculate the total value Spud assigns to each pound of potatoes. For the first pound, he values it at $1.00. For the second pound, he values it at $0.90. For the third pound, he values it at $0.70. And for all subsequent pounds, he values them at $0.25. To determine the total value Spud assigns to 5 pounds of potatoes:
- First pound: $1.00
- Second pound: $0.90
- Third pound: $0.70
- Fourth pound: $0.25
- Fifth pound: $0.25
Total value: $1.00 + $0.90 + $0.70 + $0.25 + $0.25 = $3.10
Since the total value assigned to the potatoes ($3.10) is less than the total amount Spud can spend ($4.00), he will purchase the maximum amount of 5 pounds of potatoes.