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Utilizar la calculadora gráfica de ALEKS para resolver el sistema de ecuaciones.

{:[6-0.9 x=0.4 y],[-y+0.2 x=3.6]:}
Redondear a la centésima más cercana.

(x,y)=(◻,◻)

Utilizar la calculadora gráfica de ALEKS para resolver el sistema de ecuaciones.\newline60.9x=0.4yy+0.2x=3.6 \begin{array}{l} 6-0.9 x=0.4 y \\ -y+0.2 x=3.6 \end{array} \newlineRedondear a la centésima más cercana.\newline(x,y)=(,) (x, y)=(\square, \square)

Full solution

Q. Utilizar la calculadora gráfica de ALEKS para resolver el sistema de ecuaciones.\newline60.9x=0.4yy+0.2x=3.6 \begin{array}{l} 6-0.9 x=0.4 y \\ -y+0.2 x=3.6 \end{array} \newlineRedondear a la centésima más cercana.\newline(x,y)=(,) (x, y)=(\square, \square)
  1. Write System of Equations: Write down the system of equations.\newlineWe have the following system of equations:\newline60.9x=0.4y6 - 0.9x = 0.4y\newliney+0.2x=3.6-y + 0.2x = 3.6
  2. Solve for y: Solve the first equation for y.\newlineTo find yy in terms of xx, we can rearrange the first equation:\newline0.4y=60.9x0.4y = 6 - 0.9x\newliney=(60.9x)/0.4y = (6 - 0.9x) / 0.4\newliney=15(0.9x/0.4)y = 15 - (0.9x / 0.4)\newliney=152.25xy = 15 - 2.25x
  3. Substitute into Second Equation: Substitute the expression for yy into the second equation.\newlineNow we substitute y=152.25xy = 15 - 2.25x into the second equation:\newline(152.25x)+0.2x=3.6-\left(15 - 2.25x\right) + 0.2x = 3.6\newline15+2.25x+0.2x=3.6-15 + 2.25x + 0.2x = 3.6\newline2.25x+0.2x=3.6+152.25x + 0.2x = 3.6 + 15\newline2.45x=18.62.45x = 18.6
  4. Solve for x: Solve for x.\newlineDivide both sides by 2.452.45 to find xx:\newlinex=18.62.45x = \frac{18.6}{2.45}\newlinex=7.59x = 7.59 (rounded to the nearest hundredth)
  5. Substitute for y: Substitute the value of xx back into the expression for yy.\newlineNow that we have xx, we can find yy:\newliney=152.25(7.59)y = 15 - 2.25(7.59)\newliney=1517.0775y = 15 - 17.0775\newliney=2.08y = -2.08 (rounded to the nearest hundredth)

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