Question

On a recent trip to the convenience store, you picked up 3 gallons of milk, 5 bottles of water, and 6 snack-size bags of chips. Your total bill (before tax) was $22,50. If a bottle of water costs twice as much as a bag of chips, and a gallon of milk costs $2,00 more than a bottle of water, how much does each item cost?

Answer 1

the cost of each bag at chips is $0.75

the cost of bottle is $1.50

The cost of gallon of milk is $3.50

Explanation:

Let us assume the cost of each bag at chips be x

For the cost of bottle it would be 2x

And for cost of gallon of milk be 2x + 2

The total cost is $22.50

Now the equation would be

3(2x +2) + 5(2x) + 6x = $22.50

6x + 6 + 10x + 6x = $22.50

22x = $16.50

x = $0.75

So cost of each bag at chips would be $0.75

For the cost of bottle be

= $0.75 × 2

= $1.50

And, for the cost of gallon of milk be

= 1.50 + 2

= $3.50