sally bought a 40 pound bag for $30.99 or a 10 pound bag for $12.98 which bag is cheaper

1 answer

To find out which bag is cheaper, we can calculate the cost per pound for each option.

  1. 40-pound bag for $30.99: \[ \text{Cost per pound} = \frac{30.99}{40} = 0.77475 \text{ or about } $0.775 \text{ per pound} \]

  2. 10-pound bag for $12.98: \[ \text{Cost per pound} = \frac{12.98}{10} = 1.298 \text{ or about } $1.30 \text{ per pound} \]

Now we compare the two prices:

  • 40-pound bag: approximately $0.775 per pound
  • 10-pound bag: approximately $1.30 per pound

The 40-pound bag is cheaper at about $0.775 per pound compared to the 10-pound bag at about $1.30 per pound.