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A local jewelry store sells class rings. The store engraves a name and date on the ring and sells it using a markup rate of 340%. Write an equation that can be used to find the amount of markup y on the cost of a ring x.

Respuesta :

The proportional equation that can be used to find the amount of markup y on the cost of a ring x is given by:

[tex]y = 3.4x[/tex]

What is a proportional relationship?

  • A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

[tex]y = kx[/tex]

  • In which k is the constant of proportionality.

In this problem, the markup rate is of 340%, hence [tex]k = \frac{340}{100} = 3.4[/tex].

Then, the equation is:

[tex]y = 3.4x[/tex]

You can learn more about proportional equations at https://brainly.com/question/25067191

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