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satela [25.4K]
3 years ago
6

Linear combination 3x+2y=-4 4x-y=13 Please give a step by step explanation

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
8 0

when you have a linear combination for example 3x + 2y equals negative 4 you adieu like terms and then multiply

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I'll mark you as brainliest​
joja [24]

Answer:

y=x+30

Step-by-step explanation:

use y2-y1/x2-x1 to find the slope

the y-int is 30 since looking at the answer choices

8 0
3 years ago
This might seem like an easy question to answer but, "Doreen plans to divide her stickers among 5 friends. If she has 55 sticker
Evgen [1.6K]

Answer:D

Step-by-step explanation:

Total number of stickers is 55

She has 5 friends

Each friend will get 55/5= 11 stickers

7 0
3 years ago
Y=4x i need the output<br>​
Jobisdone [24]

Answer:  -24.

Hope this helped you! :)

Please give me Brainliest

6 0
3 years ago
Write an equation to represent 'twice a number (x) is fifty"​
V125BC [204]

Hi there,

Your question is "twice a number (x) is fifty"

Recall how a number is represented by x.

Twice a number would be represented as 2x.

Therefore, to represent that twice a number is equal to 50, that would result in the expression: 2x=50

If you're looking to solve this equation, it's often best to think about the "reverse" of the current equation.

Notice how 2 is multiplying the x.

To isolate x, divide that side by 2.

However, recall that whatever is done to one side of an equation must also be done to the other side of the equation. Therefore, you will need to divide both sides by 2.

2x=50

\frac{2x}{2} = \frac{50}{2}

x=25

Equation: 2x=50

Solving for x: 25

Hope that helps!

3 0
3 years ago
Read 2 more answers
I need help on this question, think any of you guys could help?
levacccp [35]

Answer:

We need to find the circumference, and in order to find the circumference we must know the formula for it.

Formula for circumference of a circle;

a = 2πr

Where π is the pi(3.14 or 22/7), and r is the radius which is half of the diameter.

Since we are given the diameter, we need to find the radius. So 1/2 of the diameter (26 x 1/2) = is 13

Now we just plug in the actual values in the formula:

a = 2πr

a = 2 x 3.14 x 13

a = <u>18.84 feet</u>

But now, we need to find how many revolutions it would take to get to 500 feet.

So we divide 500 feet by 18.84 feet;

500/18.84 = 26.53, around 27 revolutions.

3 0
2 years ago
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