Question

KrogermPublix
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.