En un restaurante, hay 45 personas en su interior, de ellas el número de mujeres es el doble que el de hombres, mientras que la cantidad de niños, es la mitad que el de hombres y mujeres juntos. Por medio de un sistema de ecuaciones determine cuántas mujeres, hombres y niños hay en el restaurant.

solve by vobaritution \( x+y=20 \) \( y=2 x-1 \)

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Which equation ealculates the speed of a falling object? \[ \begin{array}{r}g=v / t \\ v=g \times t \\ v=v \times t \\ g=g\end{array} \]

The presence of an enzyme increases the overall energy released during a reaction. True False

Determine the intervals on which the function is increasing. decreasing, and constant. List the interval(s) on which the function is increasing. LType your answer in interval notation. Use a comma to separate answers as needed.) List the interval(s) on which the function is decreasing. (Type your answer in interval notation. Use a comma to separate answers as needed:) List the interval(s) on which the function is constant. (