KrogermPublix

Question

Head of lettuce
$1.79 $1.88
Gallon of milk
$3.39 $3.22
A dozen eggs
$2.29 $2.24
A pound of apples
$2.29/pound $2.45/pound
Frozen pizza
$8.49 $9.24

How many whole gallons of milk can you buy for $14 at each store? Remember, you can't buy part of a gallon. Write and solve an equation to find your answer.

Answer 1

To find out how many whole gallons of milk you can buy for $14 at each store, you can set up an equation based on the price per gallon of milk.

For Kroger:

The price of a gallon of milk at Kroger is $3.39.

Let \( x \) be the number of gallons of milk you can buy at Kroger.

The equation is: \[ 3.39x \leq 14 \] To solve for \( x \): \[ x \leq \frac{14}{3.39} \approx 4.13 \]

Since you can only buy whole gallons, you can buy \( x = 4 \) gallons of milk at Kroger.

For Publix:

The price of a gallon of milk at Publix is $3.22.

Let \( y \) be the number of gallons of milk you can buy at Publix.

The equation is: \[ 3.22y \leq 14 \] To solve for \( y \): \[ y \leq \frac{14}{3.22} \approx 4.35 \]

Again, since you can only buy whole gallons, you can buy \( y = 4 \) gallons of milk at Publix.

Summary:

• At Kroger, you can buy 4 whole gallons of milk.
• At Publix, you can also buy 4 whole gallons of milk.