Abby can buy an 8-pound bag of dog food for $740 or a 4-pound bag of the same dog food for $5.38. Which is the better buy?

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Abby can buy an 8-pound bag of dog food for $740 or a 4-pound bag of the same dog food for $5.38. Which is the better buy?

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Answer 1 · 2017-04-27T12:51:38

I am not sure about the numbers in particular the prices!...but...

Explanation:

We can divide the price by the quantity to get the price of a unit amount of dog food and see which options is the one that is more interesting for Abby.

In the first case one pound of dog food will cost:
$\frac{740}{8} = $ 92.5$ $740/8=$92.5$
in the second case the price is quite low....buying two bags, to get $8$ $8$ pounds of dog food, she will pay $2 \times 5.38 = $ 10.76$ $2×5.38=$10.76$ !!!

I think the prices are not correct....

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Abby can buy an 8-pound bag of dog food for $740 or a 4-pound bag of the same dog food for $5.38. Which is the better buy?

1 Answer

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