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kifflom [539]
3 years ago
9

X^2-4y^2=9; x+2y=1, solve for x and y​

Mathematics
1 answer:
ratelena [41]3 years ago
8 0

Answer:

Step-by-step explanation:

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3(x+3)+3x=15<br><br> Solution and check<br><br> Shown in attachment below
OLga [1]
3x + 9 + 3x =15
6x + 9 = 15
- 9 = -9
6x = 6
/6 /6

X =1
6 0
3 years ago
Ow many decimals numbers are there whose value equals the average of their digits?
kiruha [24]

Answer:

Step-by-step explanation:

there are infinite numbers between 2 and 3 having average=2.5

2.49,2.51

2.48,2.52

2.47,2.53

2.46,2.54

.................

2.491,2.509

2.492,2.508

2.493,2.507

......................

6 0
2 years ago
UICHL Idlic<br>3_21<br>x 28<br>x=<br><br>What does x equal ​
Advocard [28]

Answer:

this is not a real math equation.

Step-by-step explanation:

6 0
3 years ago
2+2 so you can get 40 pts I need to just write 20 characters so... ndds8bdsudbsd8s shdds8sjd sudh89hd
Zanzabum

Answer:

2+2 is 4

Step-by-step explanation:

You can imagine 2 cookies and then you get 2 more which is 4.

4 0
3 years ago
Find the measure of x:
andrezito [222]

Answer:

Hello! answer: 13

Hope that helps!

4 0
3 years ago
Read 2 more answers
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