Kroger & Publix

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 simple equation to find your answer.

Answer 1

To determine 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.

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.

The equation is: \[ 3.39x \leq 14 \]

To find \( x \), we can solve for it: \[ x \leq \frac{14}{3.39} \]

Calculating: \[ x \leq 4.132 \quad \text{(approximately)} \]

Since you can't buy part of a gallon, you can buy 4 whole gallons.

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.

The equation is: \[ 3.22y \leq 14 \]

To find \( y \), we can solve for it: \[ y \leq \frac{14}{3.22} \]

Calculating: \[ y \leq 4.347 \quad \text{(approximately)} \]

Since you can't buy part of a gallon, you can buy 4 whole gallons.

Summary:

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

Answer 2

can you redo it so the numbers are apart of the text and not to the right of it?

Answer 3

Sure! Let’s incorporate the prices directly into the text.

Kroger:

The price of a gallon of milk at Kroger is $3.39. To determine how many whole gallons of milk you can buy for $14, we can set up the following inequality, where \( x \) represents the number of gallons of milk:

\[ 3.39x \leq 14 \]

Next, we solve for \( x \) by dividing both sides by 3.39:

\[ x \leq \frac{14}{3.39} \]

Calculating this gives:

\[ x \leq 4.132 \quad \text{(approximately)} \]

Since you can only buy whole gallons, you can purchase 4 whole gallons of milk at Kroger.

Publix:

Now, looking at Publix, the price of a gallon of milk is $3.22. Similarly, we use the following inequality for the number of gallons, represented as \( y \):

\[ 3.22y \leq 14 \]

Solving for \( y \) by dividing both sides by 3.22 gives us:

\[ y \leq \frac{14}{3.22} \]

Calculating this results in:

\[ y \leq 4.347 \quad \text{(approximately)} \]

Again, since you can only buy whole gallons, you can buy 4 whole 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.