Jenny bought 3.50 pounds of peanuts for $12.60.Her friend buy's 4.00 pounds of pecans for $15.20. Which is less expensive per pound? By how much?
To determine which is less expensive per pound, we need to divide the total cost by the total weight for both items.
For peanuts:
Cost of peanuts = $12.60
Weight of peanuts = 3.50 pounds
Cost per pound of peanuts = $12.60 / 3.50 pounds = $3.60 per pound
For pecans:
Cost of pecans = $15.20
Weight of pecans = 4.00 pounds
Cost per pound of pecans = $15.20 / 4.00 pounds = $3.80 per pound
Therefore, peanuts are less expensive per pound by $0.20.
To determine which is less expensive per pound, we need to calculate the price per pound for both peanuts and pecans.
Let's start with the peanuts:
Jenny bought 3.50 pounds of peanuts for $12.60.
To find the price per pound, divide the total cost ($12.60) by the number of pounds (3.50):
Price per pound of peanuts = $12.60 / 3.50 pounds
Next, let's calculate the price per pound for pecans:
Jenny's friend bought 4.00 pounds of pecans for $15.20.
To find the price per pound, divide the total cost ($15.20) by the number of pounds (4.00):
Price per pound of pecans = $15.20 / 4.00 pounds
Now, let's compare the two prices per pound to determine which is less expensive.
Subtract the price per pound of peanuts from the price per pound of pecans:
Price per pound of pecans - Price per pound of peanuts
If the result is positive, it means the price per pound of pecans is higher (more expensive) than peanuts, while a negative result means pecans are cheaper per pound than peanuts.
By calculating the difference in the prices per pound, we can determine by how much one is less expensive than the other.
3.5 / 12.6 = $_______ per pound
4 / 15.2 = $___________ per pound