3 years ago

Can someone help me with this:

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

8 0

Answer:

F (-8, -1)

Step-by-step explanation:

We can solve the system using substitution.

From the second equation

x-6y= -2

x= -2 + 6y

This value of x substitute into 1st equation

-4x+5y=27

-4(-2+6y)+5y=27

8-24y+5y =27

- 19y = 19

y= -1

x= -2 + 6y, y= - 1

x= -2 +6(-1)= -8

x= - 8

x= -8, y= -1

(-8, -1)

You might be interested in

Justice lived in Germany and Hollands for a total of 24 months in order to learn German. He learned and average of 120 words per

lesantik [10]

Answer:

Justice lived in Germany for 15 months and he lived in Holland for 9 months.

Step-by-step explanation:

1. You must make a system of equations:

$\left \{ {{x+y=24} \atop {120x+220y=3780}} \right.$

Where $x$ is the number on months he lived in Germany and $y$ is the number on months he lived in Holland.

2. You can solve this system of equations by using the Elimination Method. If you multiply the first equation by -120, you can cancel the variable $x$ when you add both equations, and then you can calculate $y$ . When you obtain the value of $y$ , you can substitute it into one of the original equations and solve for $x$ . Then:

$\left \{ {{-120x-120=-2880} \atop {120x+220y=3780}} \right.$