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katrin2010 [14]
3 years ago
14

Helllllllllllp meeeeeee

Mathematics
1 answer:
lubasha [3.4K]3 years ago
6 0
The constant of proportionality in terms of the cost per text is the coefficient of t in the equation b=0.25t. Since the coefficient of t is 0.25, the constant of proportionality in terms of the cost per text is 0.25.
Proportionality constants are usually expressed as fractions, so lets convert 0.25 to a fraction. To do that we are going to add the denominator 1 to our decimal, and then we will multiply both numerator and denominator by ten for every number after the decimal point:
\frac{0.25}{1}
\frac{0.25}{1} . \frac{100}{100} = \frac{75}{100}
Finally, we can simplify our fraction:
\frac{25}{100} = \frac{1}{4}

We can conclude that the constant of proportionality in text of the cost per text is 1/4


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Step-by-step explanation:

The method of substitution is when one solves an equation for one of the variables, and then substitutes the expression into the other equation. After doing so, one will solve the other equation for the remaining variable and then backsolve for the first variable.

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