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Math  /  Numbers & Operations

QuestionLou's Diner spent $12.80\$ 12.80 on 8 pounds of potatoes. What was the cost of one pound of potatoes? What would be the total cost if the cost per pound remained the same and the diner bought 7 pounds? Show your work.

Studdy Solution

STEP 1

1. Lou's Diner spent $12.80 on 8 pounds of potatoes.
2. We need to find the cost per pound of potatoes.
3. We need to calculate the total cost if the diner buys 7 pounds at the same rate.

STEP 2

1. Calculate the cost per pound of potatoes.
2. Calculate the total cost for 7 pounds.

STEP 3

To find the cost per pound, divide the total cost by the number of pounds.
Cost per pound=$12.808 pounds\text{Cost per pound} = \frac{\$12.80}{8 \text{ pounds}}

STEP 4

Perform the division to find the cost per pound.
Cost per pound=$12.808=$1.60\text{Cost per pound} = \frac{\$12.80}{8} = \$1.60

STEP 5

To find the total cost for 7 pounds, multiply the cost per pound by 7.
Total cost for 7 pounds=$1.60×7\text{Total cost for 7 pounds} = \$1.60 \times 7

STEP 6

Perform the multiplication to find the total cost for 7 pounds.
Total cost for 7 pounds=$1.60×7=$11.20\text{Total cost for 7 pounds} = \$1.60 \times 7 = \$11.20
The cost per pound of potatoes is:
$1.60\boxed{\$1.60}
The total cost for 7 pounds is:
$11.20\boxed{\$11.20}

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