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Melissa paid $12.24 for a 6.35-kg bag of dog food. A few weeks later, she paid $13.99 for a 7.48-kg bag at a different store.Find the unit price for each bag. Then state which bag is the better buy based on the unit price.Round your answers to the nearest cent.

Melissa paid 1224 for a 635kg bag of dog food A few weeks later she paid 1399 for a 748kg bag at a different storeFind the unit price for each bag Then state wh class=

Respuesta :

Given:

Melissa paid $12.24 for a 6.35-kg.

In another store, she paid $13.99 for a 7.48-kg.

To find the unit price:

The unit price for a first store is,

[tex]\begin{gathered} Unit\text{ }price=\frac{\text{Total cost}}{\text{Total number of kilograms}} \\ =\frac{12.24}{6.35} \\ =1.9275 \\ =\text{ \$}1.93\text{ per kg (rounded to the nearest cent)} \end{gathered}[/tex]

The unit price of the second store is,

[tex]\begin{gathered} \text{Unit }price=\frac{\text{Total cost}}{\text{Total number of kilograms}} \\ =\frac{13.99}{7.48} \\ =1.8703 \\ =\text{\$}1.87\text{ per kg (rounded to the nearest cent)} \end{gathered}[/tex]

So, the answer is,

The unit price for a 6.35-kg is $1.93 per kg.

The unit price for a 7.48-kg is $1.87 per kg.

So, the better buy is the 7.48-kg bag.

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