Question

What is the better buy?

Defend your answer by writing a statement that compares the two quantities. Better buy means CHEAPER per unit price.

3 batteries for $4.80 or 12 batteries for $14.76?

Answer 1

simply put 12 batteries for 14.76 because 4.80x4=19.2 so if you buy more 3 packs it’s gonna cost you more

Answer 2

Answer: Option B is the cheaper deal (the 12 batteries for $14.76)

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Step-by-step explanation:

For the first deal we can say

3 batteries = 4.80 dollars

3/3 batteries = 4.80/3 dollars .... divide both sides by 3

1 battery = 1.60 dollars

The unit price for the first deal is $1.60 per battery.

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For the second deal we could say

12 batteries = 14.76 dollars

12/12 batteries = 14.76/12 dollars .... divide both sides by 12

1 battery = 1.23 dollars

The unit price for the first deal is $1.23 per battery.

This is the cheaper deal.

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So in short, you're dividing the total cost over the number of items to get the unit price.