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On Naomi's cell phone plan, the amount she pays each month for international text messages is proportional to the number of international texts she sends that month. Last month, she paid $3.20 for 16 international texts.
A. What is the constant of proportionality in this proportional relationship?
B. Write an equation to represent this proportional relationship. Make sure to define the variables you use.

Respuesta :

absor201

The constant of proportionality is: 0.2 and the equation is: c = 0.2t

Step-by-step explanation:

Let t be the number of texts and c be the cost

Then according to given statement

c ∝ t

The proportionality symbol will be removed and a constant f proportionality will be introduced.

[tex]c = kt[/tex]

For constant of proportionality:

[tex]3.20 = k * 16\\k = \frac{3.20}{16}\\k = 0.2[/tex]

Hence the constant of proportionality is 0.2

Equation:

[tex]c = 0.2t[/tex]

Hence,

The constant of proportionality is: 0.2 and the equation is: c = 0.2t

Keywords: Proportion, fractions

Learn more about proportion at:

  • brainly.com/question/12967961
  • brainly.com/question/12980135

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