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zaharov [31]
3 years ago
13

If x + 2y = 1 x-2y = 13' then y =

Mathematics
1 answer:
mezya [45]3 years ago
3 0

Answer:

y= -3

Step-by-step explanation:

adding both the equation we get x= 7

and then put value of x in any one equation u will get y as -3

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(2,3), (4,-7) midpoint
Gnoma [55]

Answer:

(3, -2)

Step-by-step explanation:

2+4 = 6

3-7 = -4

6/2 = 3

-4/2 = -2

8 0
3 years ago
How do i <br> Evaluate 4!.
Wewaii [24]
Hello there!

The formula is
N! = n(n -1)(n - 2)
Now all we have to do is replace N by 4
N! = 4(4-1)(4-2)
    = (4)(3)(4-2)
    = (12)(2)
    = 24 
Here you go, the answer is : 24


I hope this answer help! Good luck with your studies. 

5 0
4 years ago
Which expression correctly represents "twice the sum of four and a number"?
alexandr402 [8]

Answer:

(4 + x) * 2

Step-by-step explanation:

twice the sum means the total will be multiplied by 2 and sum is addition. So 4 and a number (x).

5 0
3 years ago
Maria got some sweet baseball cards because she loves baseball. She spent a lot of money and bought 456 cards. She then bought a
nydimaria [60]

There will be 5 cards on the last page.

Reason: 456/11=41.45 Round down to 41 because you can have part of a card. Then you do 41*11 which is 451. 456-451=5

3 0
3 years ago
The tax rate on Ned Topolino's $112,000 vacation home is 25 mills. The property is assessed at full value. How much will Ned pay
kirill [66]
B. $2,800 is your answer.

Hope this helped

Have a good day
4 0
3 years ago
Read 2 more answers
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