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sineoko [7]
3 years ago
7

5+7 can you cell me answer fasr

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0

Answer:

12

Step-by-step explanation:

This is an example of Addition property between two positive integers (i.e. whole value numbers), which means the result will be positive and larger than the two numbers.

The result of the addition would be:

5 + 7 = 12

Another way to do it if you are struggling a bit you can write the value of 7 as 7 = 5 +2 so then you can say:

5 + (5 + 2) = 5 + 5 + 2 = 10 + 2 = 12

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If 1+1 = x - 7<br> What is the value of X?
brilliants [131]

Answer:

1 cause its going to be one sometimes

6 0
3 years ago
Read 2 more answers
K^2+8k-9=0 can you help me solve with showing work
givi [52]
Using the PSN method:

P = -9
S = 8
So N = 9,-1

Using 9 and -1 in the original equation gives:

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7 0
3 years ago
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The sum of a number and twice another number is 17. The sum of twice the first number and the second number is 4. What are the t
zhannawk [14.2K]

Step-by-step explanation:

Given that,

a + 2b = 17

Also,

2a + b = 4

By adding the above expressions we get,

a + 2b + 2a + b = 17 + 4

3a + 3b = 21.

3 (a + b) = 21

a + b = 21/3

a + b = 7 Let us take 'b' = 10

a + 10 = 7

a = 7 - 10

a = -3

Now let's check by verifying by putting a = -3 and b = 10 in the previous expressions

a + 2b = 17

-3 + (2 × 10) = 17

-3 + 20 = 17

17 = 17

2a + b = 4

(2 × -3) + 10 = 4

-6 + 10 = 4

4 = 4

Therefore, a = -3 and b = 10 [(-3,10)] is the solution.

8 0
3 years ago
HELP WITH THIS QUESTION PLZ
ki77a [65]

Answer:

y = 13 over 20x - 4

Step-by-step explanation:

Just use changing y over changing x

3 0
3 years ago
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13x-5=-18,because x =-1
Oxana [17]
That's correct because 13•-1•-5=-18 so what is the question
8 0
4 years ago
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