Question

At the grocery store, an 80lb. bag of dog food costs $70.40. A 30 lb. bag of dog food costs $26.70. Which bag of dog food is the better buy?

Answer 1

To determine which bag of dog food is the better buy, calculate the cost per pound for each bag. The 80 lb. bag has a lower cost per pound compared to the 30 lb. bag, making it the better buy.

Step-by-step explanation:

To figure out which bag of dog food is the better buy, we need to calculate the cost per pound for each bag.

For the 80 lb. bag:

1. Cost per pound = Total cost / Total weight
2. Cost per pound = $70.40 / 80 lbs.
3. Cost per pound = $0.88/lb.

For the 30 lb. bag:

1. Cost per pound = Total cost / Total weight
2. Cost per pound = $26.70 / 30 lbs.
3. Cost per pound = $0.89/lb.

Therefore, the 80 lb. bag of dog food is the better buy because it has a lower cost per pound ($0.88/lb.) compared to the 30 lb. bag ($0.89/lb.).