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satela [25.4K]
3 years ago
12

3 nineteens, tripled

Mathematics
2 answers:
34kurt3 years ago
8 0

Answer:

19 x 3 = 57

19 plus 19 plus 19 = 57

19 to the power of 3 squared = 6859

Step-by-step explanation:

IrinaK [193]3 years ago
5 0

Answer:

Step-by-step explanatio:

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2 years ago
10. 2x + 7y = 1<br> 2x - 4y = 12<br> Solve for y
adoni [48]

Answer:

The solution for y = -1.

Step-by-step explanation:

Given:

2x\ +\ 7y\ =\ 1    ....(1)

2x\ -\ 4y\ =\ 12  ....(2)

So, to solve for y, first we solve for x in equation (2):

2x-4y=12

⇒2x=12+4y

Dividing both sides by 2,

⇒x=6+2y            

Now, substituting the value of x  in equation (1):

2x+7y=1

⇒2(6+2y)+7y=1

⇒12+4y+7y=1

⇒12+11y=1

⇒11y=1-12

⇒11y=-11

Dividing both sides by 11,

⇒y=-1

Therefore, the solution for y = -1.

7 0
2 years ago
Sydney needs $450 to buy a TV for her room.she already saved $50. She earns $20 an hour at her job.set up and solve an equation
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3 years ago
In triangle ABC, AC is a median. The value of AC is:<br><br> A. 34<br><br> B. 6 <br><br> C. 28
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