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1 answer:
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.
<u>For constant of proportionality:</u>
Hence the constant of proportionality is 0.2
<u></u>
<u>Equation:</u>
<u></u><u></u>
Hence,
The constant of proportionality is: 0.2 and the equation is: c = 0.2t
Keywords: Proportion, fractions
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Answer:
Step-by-step explanation:
The first set of parentheses is unnecessary, so it can just be removed.
To remove the second set of parentheses, you must distribute the negative sign that is to its left. It changes every sign inside the parentheses.
Now you combine like terms.