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Vadim26 [7]
3 years ago
7

Hey somebody please help me with this

Mathematics
1 answer:
kvv77 [185]3 years ago
4 0
Try the first option A
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PLEASE HELP!!!<br><br><br>Solve.<br><br><br><br>a - 2b = 2<br>a + b = 2 ( b + 3 )
wolverine [178]

a-2b=2.........(1)

a+b=2(b+3)

a+b=2b+6

a-b=6.......(2)  

a-2b= 2

a-b= 6

Eliminate y  

multiply (1)by -1  

Multiply (2) by 2  

-a+2b=-2

2a-2b=12

Add the two equations  

a = 10

plug value of a in (1)  

1a +-2b=2

10+-2b=2

-2b =2

-2b =-8

b=4.00

Hope this helped:)




3 0
4 years ago
BRAINLIEST!! LOTS of POINTS!!!! HURRY HURRY
Semenov [28]

Answer/Step-by-step explanation:

<u>Steps to solve: 2/9 − (−1/3 ÷ 3/5)</u>

(-1/3 ÷ 3/5)

= (-1/3 x 5/3)

= (-5/9)

-2/9 - (-5/9)

= -2/9 + 5/9

= 3/9

<u>To check:</u>

5/9 - 2/9 = 3/9

8 0
4 years ago
Read 2 more answers
(C) It passes through the points (0,5) and (1,8).
lisov135 [29]

Answer:

Step-by-step explanation:

(8-5)/(1-0) = 3/1 = 3

y - 5 = 3(x -0)

y -5 = 3x - 0

y = 3x + 5

5 0
3 years ago
Find the circumference of a circle with a diameter of 20 inches.
Elena-2011 [213]

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7 0
4 years ago
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A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8).
Mariulka [41]
In the third step, y-(-8) is the same as y+8. Therefore, it is not correct to add 8 on to both sides. Instead, the student should have subtracted it from both sides.

y-(-8)=-6x+12
y+8=-6x+12
y=-6x+4
7 0
4 years ago
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