La matriz X representa los precios de alquiler de películas de video.
Los precios indicados no tienen incluidos el impuesto del 7%.

A) Escribe la matriz para los impuestos de cada película.

B) Escribe la matriz para el precio total que hay que pagar incluyendo el impuesto.

A) La matriz para los impuestos de cada película es

                  A        B        C

[tex]x_{(\%)} = \left[\begin{array}{ccc}0.245&0.28&0.385\\0.315&0.35&0.49\end{array}\right][/tex]

B) La matriz para el precio total incluyendo el impuesto es

                   A         B        C

[tex]x_{(\% +)} = \left[\begin{array}{ccc}3.745&4.28&5.885\\4.815&5.35&7.49\end{array}\right][/tex]

A) Para encontrar la matriz con los impuestos, debemos calcular el 7% de cada precio de la matriz  

                       A        B       C

[tex]x_{(\%)} = 0.07\left[\begin{array}{ccc}3.50&4.00&5.50\\4.50&5.00&7.00\end{array}\right][/tex]

Al multiplicar cada valor por 0.07 (7%) tenemos:

                 A         B        C

[tex]x_{(\%)} = \left[\begin{array}{ccc}0.245&0.28&0.385\\0.315&0.35&0.49\end{array}\right][/tex]

B) La matriz para el precio total se obtiene sumando el valor del impuesto del 7% al valor inicial del precio, tal como sigue:

                        A                    B                  C

[tex]x_{(\% +)} = \left[\begin{array}{ccc}3.50 + 0.245&4.00 + 0.28&5.50 + 0.385\\4.50 + 0.315&5.00 + 0.35&7.00 + 0.49\end{array}\right][/tex]

                   A         B        C

[tex]x_{(\% +)} = \left[\begin{array}{ccc}3.745&4.28&5.885\\4.815&5.35&7.49\end{array}\right][/tex]

Puedes encontrar más sobre porcentajes aquí: https://brainly.com/question/19143077?referrer=searchResults                                                          

Espero que te sea de utilidad!

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