Question

Please Help and Thanks.

Jack is looking to buy a soda at the store. He notices that a 20oz bottle of soda costs $1.20 and a 12 oz can of soda costs $0.85. He wants to get the best deal for his money. Find the unit rates to compare which deal is better per ounce.

Answer 1

Explanation:

case 1

cost of 20oz bottle of soda = $1.20

dividing both side by 20

cost of 20/20 oz bottle of soda = $1.20/20

cost of 1oz bottle of soda = $0.06

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Case 2

cost of 12oz bottle of soda = $0.85

dividing both side by 12

cost of 20/20 oz bottle of soda = $0.85/12

cost of 1oz bottle of soda = $0.07

Based on above calculation, we can see that first deal 20oz bottle of soda at costs $1.20 is better deal as per unit cost is $0.06 which is less than 12 oz can of soda costs $0.85 which is equivalent to $0.07 per unit cost