All categories

3 years ago

2y-x=2 substitute solution?

Mathematics

1 answer:

DerKrebs [107]3 years ago

5 0

Answer:

Y=1 X=0

Step-by-step explanation:

You might be interested in

NEED HELP FAST PLZZ!!!!!!!

adell [148]

The answer is A. 102.

Have a great day!

4 0

2 years ago

Find the solution set of this inequality|10x+20| ≤10

Pavlova-9 [17]

Answer:

solution is

[-3,-1]

Step-by-step explanation:

we are given

$|10x+20|\leq 10$

Firstly, we will find critical values

so, let's assume it is equal

$|10x+20|= 10$

now, we can break absolute sign

For $|10x+20|= -(10x+20)$ :

$-(10x+20)= 10$

we can solve for x

$-10x-20= 10$

Add both sides by 20

$-10x-20+20= 10+20$

$-10x= 30$

Divide both sides by -10

and we get

$x=-3$

For $|10x+20|= (10x+20)$ :

$(10x+20)= 10$

we can solve for x

$10x+20= 10$

Subtract both sides by 20

$10x+20-20= 10-20$

$10x= -10$

Divide both sides by 10

and we get

$x=-1$

so, critical values are

$x=-3$

$x=-1$

now, we can draw a number line and locate these values

and then we can check inequality on each intervals

For $(-\infty,-3)$ :

We can select any random value from this interval and plug that in inequality

and we get

we can plug x=-5

$|10\times -5+20|\leq 10$

$|-50+20|\leq 10$

$30\leq 10$

so, this is FALSE

For $[-3,-1]$ :

We can select any random value from this interval and plug that in inequality

and we get

we can plug x=-2

$|10\times -2+20|\leq 10$

$|-20+20|\leq 10$

$0\leq 10$

so, this is TRUE

For $(-1,\infty)$ :

We can select any random value from this interval and plug that in inequality

and we get

we can plug x=0

$|10\times 0+20|\leq 10$

$|0+20|\leq 10$

$20\leq 10$

so, this is FALSE

so, solution is

[-3,-1]

7 0

2 years ago

100 points the right answer please the set designer for a play painted some background scenery on a large piece of plywood. He u

tiny-mole [99]

Answer:the answer is 14

Step-by-step explanation:

6 0

2 years ago

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first

Sonja [21]

I think it is a Convience Sampling.

6 0

2 years ago

Select the correct answer.

Oduvanchick [21]

I think answer should be thousands please give me brainlest I hope this helps let me know if it’s correct or not okay thanks

6 0

2 years ago

Read 2 more answers