Question

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Answer 1

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.

$c = kt$

For constant of proportionality:

$3.20 = k * 16\\k = \frac{3.20}{16}\\k = 0.2$

Hence the constant of proportionality is 0.2

Equation:

$c = 0.2t$

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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