As a first step in solving the system shown, Yumiko multiplies both sides of the equation 2x – 3y = 12 by 6. By what factor should she multiply both sides of the other equation so that she can add the equations and eliminate a variable?
5x +6y = 18
2x – 3y = 12
factor:

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Ответ:

gabrielfuentesnegron

27.04.2020

Mathematics

Step-by-step explanation:

Using the cosine ratio in the right triangle

cosθ = $\frac{adjacent}{hypotenuse}$ = $\frac{7}{16}$ , then

θ = $cos^{-1}$ ( $\frac{7}{16}$ ) ≈ 64° ( to the nearest degree )

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As a first step in solving the system shown, Yumiko multiplies both sides of the equation 2x – 3y = 12 by 6. By what factor should she multiply both sides of the other equation so that she can add the equations and eliminate a variable? 5x +6y = 18 2x – 3y = 12 factor: