Question

Keisha needs to buy some pencils. Brand A has a pack of 12 pencils for $3.29. Brand B has a pack of 28 pencils for $8.99. Find the unit price for each brand. Then state which brand is better buy base on the unit price. Round your answers to the nearest tenth.

Answer 1

To determine the unit price (price per pencil) in each pack of pencils, we shall use the following;

`\text{Unit price}=\frac{Total\text{ price}}{total\text{ pencils}}`

For brand A, the unit price is;

`\begin{gathered} \text{Unit price}=(3.29)/(12) \\ \text{Unit price}=0.274166 \\ \text{Unit price}\approx0.27\text{ (rounded to the nearest tenth)} \end{gathered}`

For brand B, the unit price is;

`\begin{gathered} \text{Unit price}=(8.99)/(28) \\ \text{Unit price}=0.321071 \\ \text{Unit price}\approx0.32 \end{gathered}`

If you decided to buy per unit rather than per pack, then the better option is Brand A which costs $0.27 each.

ANSWER:

Unit price for Brand A = $0.27 for each pencil

Unit price for Brand B = $0.32 for each pencil

The better buy is Brand A