X + 9 = 16
explanation : he bought nine more coins which made it 16. to find out how many coins he sold you would solve the equation then divide by 2.
Answer:
7 + 11
Explanation:
<u>sum of 7 and 11 means addition of both the integers</u>
Answer:
B
Step-by-step explanation:
B-X=A
or
B-A=X
or
X=B-A
![X=\left[\begin{array}{ccc}-5&-1&6\\4&1&2\\0&-3&2\end{array}\right] -\left[\begin{array}{ccc}-1&-2&3\\4&8&-6\\0&1&5\end{array}\right] \\=\left[\begin{array}{ccc}-5+1&-1+2&6-3\\4-4&1-8&2+6\\0-0&-3-1&2-5\end{array}\right] \\=\left[\begin{array}{ccc}-4&1&3\\0&-7&8\\0&-4&-3\end{array}\right]](https://tex.z-dn.net/?f=X%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-5%26-1%266%5C%5C4%261%262%5C%5C0%26-3%262%5Cend%7Barray%7D%5Cright%5D%20-%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26-2%263%5C%5C4%268%26-6%5C%5C0%261%265%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-5%2B1%26-1%2B2%266-3%5C%5C4-4%261-8%262%2B6%5C%5C0-0%26-3-1%262-5%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-4%261%263%5C%5C0%26-7%268%5C%5C0%26-4%26-3%5Cend%7Barray%7D%5Cright%5D)
144 ÷ 36 = 4
to solve a problem like this, flip it to a division problem
To find this question's answer, we need to know that sum of the exterior angles of any given polygon is 360°. This is default and non-changeable.
Now we know that the sum of all exterior angles is 360°, the question says that one angle is equal to 36°.
When we divide them we get:

So, we found that there are 10 exterior angles.