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Julli [10]
3 years ago
15

PLEASE HELP FAST! WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER!

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0

Answer:

8y=8 or 4y=-4

Step-by-step explanation:

1.)-2(x+3y=-1)

   2x+2y=6

2.)-2x+6y=2

     2x+2y=6

3.)6y=2  

   2y+6

4.)8y=8 (If adding) or 4y=-4 (If subtracting)

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What is the midpoint of AB?
Citrus2011 [14]

Answer:

(-4, -\frac{1}{2})

Step-by-step explanation:

Hi there!

We are given the line segment, with the end points AB

The coordinates of A are (-5, -4), and the coordinates of B are (-3, 3).

We want to find the midpoint of the line segment AB

The midpoint formula is given as (\frac{x_1+ x_2}{2}, \frac{y_1 + y_2}{2}), where (x_1, y_1) and (x_2, y_2) are coordinates

We have two coordinates, which is what we need, but let's label their values to avoid any confusion:

x_1=-5\\y_1=-4\\x_2=-3\\y_2=3

Now substitute those values into the formula:

(\frac{x_1+ x_2}{2}, \frac{y_1 + y_2}{2})

(\frac{-5+ -3}{2}, \frac{-4+ 3}{2})

Now simplify the numerator and denominator

(\frac{-8}{2}, \frac{-1}{2})

Simplify again:

The midpoint is (-4, -\frac{1}{2})

Hope this helps!

7 0
2 years ago
Elon sent a chain letter to his friends, asking them to forward the letter to more friends. The relationship between the elapsed
Papessa [141]

Answer: grows by a factor of 3

Step-by-step explanation: khan academy

4 0
3 years ago
Three less than four times a number is the same as the number +12 what is the equation?
Sladkaya [172]

Answer:

I think it would be 4×n-3 = n+12

3 0
4 years ago
Read 2 more answers
A 5-pack of key chains costs $5.46. What is the unit price, rounded to the nearest cent?
svlad2 [7]

Answer:

the unit price is $1.10

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Anh earns $7.75 per hour working after school. He needs at least $290 for a stereo system. Write and solve an inequality that de
UkoKoshka [18]

Answer:

7.75 x Y \geq 290

Step-by-step explanation:

we can do it backwards

290/7.75

about 37.42

so Y = 37.42 hours or higher

(thx for reminding me to round)

or Y can = 38

3 0
2 years ago
Read 2 more answers
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