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Alik [6]
2 years ago
12

In the figure, m∠7 = 100° . Find the measure of ∠8 .

Mathematics
1 answer:
Law Incorporation [45]2 years ago
4 0

Answer:

i need the picture

Step-by-step explanation:

i cant solve without the picture

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Solve by substitution. Show each step of your work.
zaharov [31]

5x + y = 15

y = -5x + 15

Substituting y= -5x+15 from first equation into second equation:

3x + 2y = 16

3x + 2·(-5x + 15) = 16

3x - 10x + 30 = 16

-7x + 30 = 16

7x = 30 - 16 = 14

x = 2

Substituting x=2 into the first equation:

5x + y = 15

5(2) + y = 15

10 + y = 15

y = 15 - 10

y = 5

So your final answers are x=2 and y=5.

3 0
2 years ago
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Please help me i have 5 minutes left: )! ill give Brainliest thanks<3
Vsevolod [243]

Answer:

B

Step-by-step explanation:

B

7 0
3 years ago
What is ​4 9/10​ expressed as a decimal?
bulgar [2K]

Answer:

4.9

Step-by-step explanation:

6 0
3 years ago
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Solve the system of equations. Write you answer as an ordered pair.
lawyer [7]

Answer:

x = -4    y = -5

Step-by-step explanation:

2x + 3 = -x - 9

3x + 3 = -9

3x = -12

x = -4

y = - (-4) - 9

y = 4 - 9

y = -5

6 0
2 years ago
Two thirds equals 18 over x plus 5
Wewaii [24]
Problem: 2/3= 18/(x+5)

First, I would multiply the (x+5) over

Making it 2/3(x+5)=18

Second, I would Divide by 2/3 (which is the same as multiplying by the reciprocal 3/2)

which shows up like this now (x+5)=18*3/2

third I would subtract the 5 over

which will give you your answer
7 0
2 years ago
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