The store has a sale on green beans; 1 pound for $1.99. Sarah buys 3 pounds of green beans, a bag of potatoes for $6.45, and a pumpkin pie for $8.79. She gives the cashier a $20 bi... The store has a sale on green beans; 1 pound for $1.99. Sarah buys 3 pounds of green beans, a bag of potatoes for $6.45, and a pumpkin pie for $8.79. She gives the cashier a $20 bill and a $10 bill. How much change does she receive?
Understand the Problem
The question asks us to calculate the total cost of items Sarah buys and determine the change she receives after giving the cashier a total of $30.
Answer
The change Sarah receives is $8.79.
Answer for screen readers
The change Sarah receives is $8.79.
Steps to Solve
- Calculate the cost of green beans
Sarah buys 3 pounds of green beans, priced at $1.99 per pound.
The total cost for green beans is: $$ 3 \times 1.99 = 5.97 $$
- Add the cost of potatoes
The bag of potatoes costs $6.45.
Now, we add this to the green beans: $$ 5.97 + 6.45 = 12.42 $$
- Add the cost of the pumpkin pie
The pumpkin pie costs $8.79.
So we add this to the previous total: $$ 12.42 + 8.79 = 21.21 $$
- Determine the total amount paid to the cashier
Sarah gives the cashier a $20 bill and a $10 bill, totaling: $$ 20 + 10 = 30 $$
- Calculate the change received
Finally, we subtract the total cost of the items from the total amount given to the cashier: $$ 30 - 21.21 = 8.79 $$
The change Sarah receives is $8.79.
More Information
Sarah bought three types of items, and it's important to carefully calculate each step to ensure accuracy when dealing with financial transactions.
Tips
- Forgetting to multiply the number of pounds by the unit price: Ensure every item is accounted for by multiplying appropriately.
- Incorrectly adding the costs together: Double-check addition at each step to avoid errors.
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