Solve Each System by Using Either the Substitution or the Elimination-By-Addition

question 166

Short Answer

Solve each system by using either the substitution or the elimination-by-addition method, whichever seems more appropriate. $$\left( \begin{array} { c } y = 2 x + 25 \\y = - 3 x - 10\end{array} \right)$$

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Definitions:

Proportion

The fraction of a whole that represents a part of that whole, often expressed as a percentage.

Radio Listening Habits

Patterns or tendencies of individuals in how they listen to the radio, including preferences in stations, genres, and listening times.

Teenagers

Individuals who are in their teenage years, typically between the ages of 13 and 19.

Sample Size

The number of observations or data points collected in a subset of the population for the purposes of statistical analysis.