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AlladinOne [14]
3 years ago
11

How many solutions does the system have? \begin{cases} 3x+y=8 \\\\ 2x+2y=8 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ 3x+y=8 2x+2y=8 ​ Choose 1

answer: Choose 1 answer: (Choice A, Checked) A Exactly one solution (Choice B) B No solutions (Choice C) C Infinitely many solutions
Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Answer:

This system has one solution (x=2 and y=2), then the answer is A.

Step-by-step explanation:

The system of equations is:

3x+y=8 (1)

2x+2y=8 (2)

Let's multiply the first equation by 2 and subtract it to the second equation  

6x-2x+2y-2y=16-8

4x=8  

x=2

Using this value in (1) we can find y.

3(2)+y=8

6+y=8

y=2

Therefore, this system has one solution (x=2 and y=2), the answer is A.

I hope it helps you!

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SSSSS [86.1K]
I would say, well, if there are 3 sides that are equal on spinner 1. They are equal. But, we are focusing on spinner two that has two sides. If there is only 2 equal sides then, they would have to be straight across from each other. So that is 180. 360 is full circle. take away 180 to get answer. 
360-180=180
I hope this helped. And sorry if it is not the correct answer. But that is how I would of answered it
4 0
3 years ago
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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each triangle below with the value
Dmitriy789 [7]

Answer:

30, 9, 15, 29

Step-by-step explanation:

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Triangle 2, blue

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8 0
3 years ago
If gumballs cost 150 a bag ,and there 15!gumballs in each bag much do you need to charge for each gumball in order to make money
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ohaa [14]

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5 0
3 years ago
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2^5 over 4 = 2^5 over 2a = 2^b = c What are a b and c
likoan [24]

Answer:

a = 2

b = 3

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Step-by-step explanation:

<em>2^5/4</em>=<em>2^5/2a</em>=<em>2^b</em>=<em>c</em>

      <em>2^5/4</em>, 2^5 = 32, 32/4 = 8

             so c, being what all of this is equal to, is 8

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              so a = 2

      <em>2^b </em>= 8, ∛8 =  3

              so b = 3

Hope my explanation makes sense :)

6 0
3 years ago
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