Plz help I really need help, I’m gonna give brainlist

Solve x+5y=11 and -x+4y=7 using elimination

ddd [48]

Answer: (1, 2)

Concept:

There are three general ways to solve systems of equations:

Elimination
Substitution
Graphing

Since the question has specific requirements, we are going to use elimination

Solve:

Given expressions

x + 5y = 11

-x + 4y = 7

Add both equations together to elimination [x] variable

(x + 5y) + (-x + 4y) = 11 + 7

x - x + 5y + 4y = 18

9y = 18

Divide 9 on both sides

9y / 9 = 18 / 9

$\boxed{y=2}$

Find the x value

x + 5y = 11 ⇔ Given equation

x + 5(2) = 11 ⇔ Substitute values of y

x + 10 = 11 ⇔ Simplify by multiplication

x + 10 - 10 = 11 - 10 ⇔ Subtract 10 on both sides

$\boxed{x=1}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Read 2 more answers

You have 1300 dollars to invest on mugs. Each mug is 2 dollars each after you put the logo you resell it for 7. Find the equatio

VashaNatasha [74]

Answer:

2-1300+7m

Step-by-step explanation:

m=mugs

8 0

3 years ago

Which of the following random variables should be considered continuous? Select one: a. The number of cars owned by a randomly c

kolbaska11 [484]

The Random Variable that should be considered continuous is "The time it takes for a randomly chosen athlete to run 200 meters" , the correct option is (c) .

In the question ,

four random variables are given , we have to select the random variable that is continuous .

A Continuous Random Variable is a random variable X , which can take any value in its domain or in an interval or the union of intervals on the real line is called Continuous random variable .

For Example : weight of middle aged people lying between 40 Kg and 150 Kg .

From the given options ,

the option (c) , the time taken for a randomly chosen athlete to run 200 meters is a interval of time ,

So ,it is can be called as Continuous Random Variable .

Therefore , the option that represents Continuous Random Variable is option(c) .

The given question is incomplete , the complete question is

Which of the following random variables should be considered continuous ? Select one:

(a) The number of cars owned by a randomly chosen adult male

(b) The number of orders received by a mail-order company in a randomly chosen week

(c) The time it takes for a randomly chosen athlete to run 200 meters

(d) The numbers of brothers a randomly chosen person has .

Learn more about Continuous Random Variable here

brainly.com/question/17238189

#SPJ4

3 0

1 year ago

Help please!! What is the distance between these points? (-7, 6) and (3, 6)

Licemer1 [7]

Answer:

10

Step-by-step explanation:

sqrt root (x2-x1)^2 + (y2-y1)^2

4 0

3 years ago

A neighbor pays you and two friends 90 dollars to paint his garage. You divide the money 3 ways on the ratio 2:3:5

olchik [2.2K]

2x+3x+5x=90
10x=90
x=9

2 times 9=18
3 times 9=27
5 times 9=45

$18, $27, and $45.

5 0

3 years ago