3 years ago

I’ll give you 10 points if you can answer this question

Mathematics

1 answer:

aliina [53]3 years ago

4 0

74 degrees, its based off the theorem about vertical angles

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Solve the equation in two different ways. Choose one method of solving in detail 5x+7(x+1) = 5x - 21

frozen [14]

Answer:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

Step-by-step explanation:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

6 0

3 years ago

On Megan’s road map, 1 inch represents 10 miles. How many miles would 4 inches represent and how do you know? (explain your thin

timurjin [86]

Answer:

The answer is 40 miles!

Step-by-step explanation:

1 inch= 10 miles

2 inches= 20 miles

3 inches= 30 miles

4 inches= 40 miles

Just count by tens

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3 years ago

Is (0.3) the solution to the equation y=x+3

Goryan [66]

Answer:-3

Step-by-step explanation:Could it be -3 if your learning about intercepts I need more information to help you further

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3 years ago

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Find the value of x and the value of y for which (x,23) and (18,y) ate the points on the graph y=0.5x+15

shutvik [7]

Answer:

x=16; y=24

Step-by-step explanation:

for (x,23), 23=0.5x+15

x=16

for (18xy), y=0.5*18+15=24

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3 years ago

What is the solution set to 6+2n>12 Is n >3

Stolb23 [73]

6 + 2n > 12 |subtract 6 from both sides

2n > 6 |divide both sides by 2

n > 3

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3 years ago