tunerrcarz
tunerrcarz tunerrcarz
  • 03-05-2020
  • Mathematics
contestada

please answer correctly, will mark brainliest

worth 30pts

please answer correctly will mark brainliest worth 30pts class=

Respuesta :

amna04352
amna04352 amna04352
  • 03-05-2020

Answer:

(3,15)

Step-by-step explanation:

y = 5x

x + y = 18

x + 5x = 18

6x = 18

x = 3

y = 5(3) = 15

Answer Link
igoroleshko156
igoroleshko156 igoroleshko156
  • 07-05-2020

Step-by-step explanation:

Step 1:  Set y to 5x in the first equation

[tex]x + y = 18[/tex]

[tex]x + (5x) = 18[/tex]

[tex]6x = 18[/tex]

[tex]6x / 6 = 18 / 6[/tex]

[tex]x = 3[/tex]

Step 2:  Set x to 3 in the second equation

[tex]y = 5x[/tex]

[tex]y = 5(3)[/tex]

[tex]y = 15[/tex]

Answer:  [tex](3, 15)[/tex]

Answer Link

Otras preguntas

The United States international court of justice acts as the
Which prediction can most likely be made based on this scenario?
what's the answer? I'm guessing A.
What factors led to the territorial decline of the ottoman empire over the course of the 19th century? what territories were lost?
The height in feet, h, of a model rocket t seconds after launch is given by the equation h(t) = 3+70t - 16t^2. The average rate of change in h(t) between t = 1
Suppose that you set up a potometer with a bean seedling that is badly wilted. its leaves are wrinkled and drooping. over the course of 30 minutes you observe t
Please help me with #1!!!!
Melissa’s father is 194 cm tall. He is 79 cm taller than Melissa. How tall is Melissa?
44.69 rounded to the nearest tenth
John wants to train his daughter to excuse herself before she leaves the table. although he does not know how often he will reward her for excusing herself, he