To determine how many whole gallons of milk you can buy for $14 at each store, you can use a simple equation.
Kroger
- Cost of a gallon of milk: $3.39
- Let \( x \) be the number of gallons you can buy.
- The equation for Kroger is: \[ 3.39x \leq 14 \]
- To find \( x \), solve for \( x \): \[ x = \frac{14}{3.39} \approx 4.13 \]
- Since you can’t buy part of a gallon, round down to the nearest whole number: \[ x = 4 \]
Publix
- Cost of a gallon of milk: $3.22
- Let \( y \) be the number of gallons you can buy.
- The equation for Publix is: \[ 3.22y \leq 14 \]
- To find \( y \), solve for \( y \): \[ y = \frac{14}{3.22} \approx 4.35 \]
- Again, round down to the nearest whole number: \[ y = 4 \]
Conclusion
At both Kroger and Publix, you can buy 4 whole gallons of milk for $14.