Solve the System $$\left\{ \begin{array} { l } 7 x - 2 y = 5 \\28 x - 8 y = 15\end{array} \right.$$

question 219

Multiple Choice

Solve the system.
- $$\left\{ \begin{array} { l } 7 x - 2 y = 5 \\28 x - 8 y = 15\end{array} \right.$$

• A) inconsistent (no solution)
• B) 6, - 9
• C) (2, 5)
• D) consistent (many solutions)

---

Definitions:

Standard Deviation

A statistical measure of the dispersion or spread of a set of values, indicating how much the values differ from the mean.

Zero Standard Deviation

A statistical measure indicating that all values within a data set are identical; there is no variability.

Average Temperature

The mean value of temperature taken over a specified period of time.

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of data points or values from their mean (average).