Please help me out!

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B

riadik2000 [5.3K]

Answer:

$x=20; y=50$ or $(20, 50)$

Step-by-step explanation:

Substitution means plugging in one variable's value that consists of the opposite variable. Because $y=3x-10$ is already specified, you can plug it into the second equation's $y$ value. After doing that, it looks like this:

$-4x+2y=20→-4x+2(3x-10)=20$

Then you would distribute the $3$ across the parentheses next to it, like this:

$-4x+2(3x-10)=20→-4x+6x-20=20$

Then, add like terms, like this:

$-4x+6x-20=20→2x=40$

Then divide both side by $2$ to isolate $x$ .

$x=20$

Now, you can plug $20$ ( $x$ ) into either equation, but the first one seems simpler so you would pick that. It would look like this:

$y=3x-10→y=3(20)-10$

Solving would look like this:

$y=3(20)-10→y=60-10→y=50$

So the answer is $x=20; y=50$ or $(20, 50)$ .

6 0

3 years ago

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The following factors are not prime: (x2- 7x)(7x+21).What remains to be factored? (can be more than one answer). A) Factor out t

topjm [15]

C
The first binomial can have an x factored out, resulting in (x-7) and the second binomial can have a 7 factored out, resulting in (x+3)

5 0

3 years ago

Read 2 more answers

What is decimals -4.8(5.3)

bearhunter [10]

Answer:

-25.44

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

At a particular restaurant, each onion ring has 65 calories and each slider has 250 calories. A combination meal with onion ring

andre [41]

Answer:

The number of onion rings is 3 in the combination meal and the number of sliders is 2 in the combination meal.

Step-by-step explanation:

Given:

At a particular restaurant, each onion ring has 65 calories and each slider has 250 calories. A combination meal with onion rings and sliders has a total of 5 onion rings and sliders altogether and contains 695 calories.

Now, to find the number of onion rings in the combination meal and the number of sliders in the combination meal.

Let the number of onion rings in the combination meal be $x.$