Un inversionista ha empleado 1910 dólares en comprar 50 acciones de dos empresas diferentes. Las acciones de la empresa x costaron 40 dólares cada una y las de la empresa y 35 dólares. Cuál es el sistema de ecuaciones que describe al problema anterior ?

2 liters for 10   people

step-by-step explanation:

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q

set the two equations for y equal to each other. solve for x. this will be the x-coordinate for the point of intersection. use this x-coordinate and plug it into either of the original equations for the lines and solve for y.