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shusha [124]
3 years ago
15

Can someone please help ​

Mathematics
2 answers:
VMariaS [17]3 years ago
6 0
X-3y=9
x=3y+9
4(3y+9)-3y=9
12y-3y+36=9
9y=-27
y=-3
x-3(-3)=9
x+9=9
x=0
(0,-3)
3241004551 [841]3 years ago
3 0

Answer:

x=3, y= - 2

Step-by-step explanation:

4x + 3y = 6

x-3y= 9

x=9+3y

4.(9+3y)+3y=6

36+12y+3y=6

15y = - 30

y = - 2

=> x= 9+3y

x= 9+ 3.(- 2)

x= 3

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Paula salió de su casa rumbo al trabajo avanzo 8km al este y 13km al norte. Si hubiera un camino recto desde su casa a su trabaj
zhannawk [14.2K]

Answer:

15.26km

Step-by-step explanation:

Con la informacion de la pregunta e hecho un diagrama de la situacion. Podemos ver en el diagrama que el recorido forma un triángulo rectángulo. Entonces para saber la distancia que recorreria por el camino recto desde su casa a su trabajo tendriamos que calcular el valor de x, que se puede calcular usando el teorema de pitagoras que es el siguiente.

a^{2} + b^{2} = c^{2}

donde a y b son el ancho y el alto del triangulo y el c seria x

8^{2} + 13^{2}  = x^{2}

64 + 169 = x^{2}

233 = x^{2}

15.26 = x

Finalmente, podemos ver que la distancia seria 15.26km

7 0
3 years ago
Please Hurry! What is the solution to log2_(9x)-log2_3=3?
brilliants [131]

Answer:

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3 years ago
Read 2 more answers
$290, 12.5%, 6 months
Veronika [31]
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3 years ago
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5 0
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