ara30 ara30
  • 03-07-2019
  • Mathematics
contestada

How many solutions does the following system of equations have

How many solutions does the following system of equations have class=

Respuesta :

gmany
gmany gmany
  • 16-07-2019

Answer:

D. Zero

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}y=\dfrac{5}{2}x+2&(1)\\2y=5x+8&(2)\end{array}\right\\\\\text{substitute (1) to (2)}:\\\\2\left(\dfrac{5}{2}x+2\right)=5x+8\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(2)\left(\dfrac{5}{2}x\right)+(2)(2)=5x+8\\\\5x+4=5x+8\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\4=8\qquad\bold{FALSE}\\\\\text{The system of equations has no solution.}[/tex]

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