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Alenkinab [10]
3 years ago
7

What is the value of y in the following system? y=3x-5 6x+3y=15

Mathematics
2 answers:
charle [14.2K]3 years ago
8 0

Step-by-step explanation:

y=3x-5

6x+3y=15

6x+3(3x-5)=15

6x+9x-15=15

15x-15=15

+15 +15

15x=30

/15. /15

x=2

6(2)+3y=15

12+3y=15

-12. -12

3y=3

/3 /3

y=1

(2,1)

The answer is (2,1)

8090 [49]3 years ago
6 0

Step-by-step explanation:

6x + 3(3x - 5) = 15

6x + 9x - 15 = 15

15x - 15 = 15

+15 +15

15x = 30

/15 /15

x = 2

6(2) + 3y = 15

12 + 3y = 15

-12 -12

3y = 3

/3 /3

y = 1

(2, 1)

This should be right if it is please make me brainliest.

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What is 4.22 x 10^17 seconds
Allushta [10]

We can rewrite the given time as:

  • 7.03x10^15 mins
  • 1.17x10^14 hours.
  • 4.88x10^12 days.
<h3>What is 4.22x10^17 seconds in minutes and hours?</h3>

First, remember that:

60s = 1 min

Then to write that amount in minutes, we just need to divide by 60, so we get:

(4.22x10^17)/60  mins=  7.03x10^15 mins

Now, remember that:

1 hour = 3600s

Then to get the time in hours, we need to divide by 3600:

(4.22x10^17)/3600 h = 1.17x10^14 hours.

Similarly, you can change to any time unit that you want, for example:

1 day = 24*3600 s

Then the time in days is:

(4.22x10^17)/(24*3600) days = 4.88x10^12 days.

And so on.

If you want to learn more about changes of units:

brainly.com/question/9032119

#SPJ1

8 0
1 year ago
Can anyone Plz help me in this question (see the attachment) <br>Fast Plz tomorrow is my exam.... ​
vaieri [72.5K]

Answer:

I hope this helps. When you're drawing yours, make this widths of the bars the same. Leave a gap before drawing your bars.

Please give brainliest.

I've you don't understand something, please comment

7 0
3 years ago
PLEASE HELP GIVING 15 PTS!! AND WILL MARK BRAINLIEST!!
anastassius [24]
I think the answer is(-1,1)
7 0
3 years ago
2a-9=-2a+15 helppppp
Nina [5.8K]
<span><span><span><span>2a</span>−9</span>+<span>2a</span></span>=<span><span><span>−<span>2a</span></span>+15</span>+<span>2a</span></span></span><span><span><span>4a</span>−9</span>=<span>15 

</span></span>Step 2: Add 9 to both sides.<span><span><span><span>4a</span>−9</span>+9</span>=<span>15+9</span></span><span><span>4a</span>=<span>24 

</span></span>Divide both sides by 4.<span><span><span>‌<span><span>4a/</span>4</span></span>‌</span>=<span>‌<span>24/<span>4 


</span></span></span></span>Answer:<span>a=<span>6</span></span>
8 0
3 years ago
Read 2 more answers
15) If a curve intersects x -axis at (2,0) and (-2,0) then zeroes of a polynomial are
deff fn [24]

Answer:

2\ and\ -2

Step-by-step explanation:

If a polynomial intersects the x-axis at (2,0) and (-2,0)

Then the zeroes are at x=2 and x=-2

(Outside of the question)

To find factors using the zeroes, we must have one side of the equation equal to zero.

x=2

x-2=0

factor (x-2)

x=-2

x+2=0

factor (x+2)

5 0
3 years ago
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