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Zina goes to the store to buy markers. An 8-pack of markers costs $10.99, but it does not have the color that she wants. A 12-pack of markers has the right color, but the price label below is damaged, and she can't read the total price. Zina can see that the 12-pack has the same unit cost as the 8-pack. Write a proportion that Zina can use to determine how much the 12-pack of markers will cost. Use C to represent the cost of the 12-pack of markers.

Respuesta :

Using proportions, it is found that the cost of the 12-pack of markers, in dollars, is of:

  • [tex]C = \frac{10.99 \times 12}{8} = 16.5[/tex]

Proportions:

  • This question is solved by proportions, using a rule of three.
  • The cost of a 8-pack of markers is of $10.99. What is the cost of a 12-pack?

The rule of three is:

8 pack - $10.99

12-pack - $C

Applying cross multiplication:

[tex]8C = 10.99 \times 12[/tex]

[tex]C = \frac{10.99 \times 12}{8} = 16.5[/tex]

To learn more about proportions, you can take a look at https://brainly.com/question/24372153

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