Yep!
Weighing #1: Start off by splitting the pile of 12 coins evenly into two piles, 6 in each pile. Put one pile on each side of the balance. The side that is weighed down has the fake coin it in. Ignore the other 6 coins.
Weighing #2: Now you have 6 coins left. Split the pile evenly again, 3 in each pile. Repeat the same process and put each pile on one side of the balance. The side that is weighed down has your fake coin in it. Ignore the other 3 coins.
Weighing #3: You have 3 coins left. Take two coins, whichever two you like, and weigh them. If they weigh the same, then the one you didn't weigh is the fake one. If one is heavier, then that heavier one is your fake coin.
45000 grams
Hope this helps. Have a amazing day and stay safe <3
I believe you ment to say sale price but I hope this helps you understand your question. The original price was 1200, and if it were 5/6 on sale (this method works for all questions like this) you would do 1200 ÷ 6 = 200 x 5 = $1000.
Answer:
7
Step-by-step explanation:
that what i thank it is
ANSWER
![\left[ { \begin {array} {cc} 10&0& | 10\\-5&-8& | 9\\ \end {array}} \right]](https://tex.z-dn.net/?f=%5Cleft%5B%20%7B%20%5Cbegin%20%7Barray%7D%20%7Bcc%7D%2010%260%26%20%7C%2010%5C%5C-5%26-8%26%20%7C%209%5C%5C%20%5Cend%20%7Barray%7D%7D%20%20%5Cright%5D%20)
EXPLANATION
The given system of equations is
10x=10
-5x-8y=9
We can rewrite this as:
10x+0y=10
-5x-8y=9
The augmented matrix is the combination of the coefficient matrix and the constant matrix.
The coefficient matrix is
![\left[ { \begin {array} {cc} 10&0\\ - 5& - 8\\ \end {array}} \right]](https://tex.z-dn.net/?f=%20%20%5Cleft%5B%20%7B%20%5Cbegin%20%7Barray%7D%20%7Bcc%7D%20%2010%260%5C%5C%20-%205%26%20-%208%5C%5C%20%5Cend%20%7Barray%7D%7D%20%20%5Cright%5D%20%20)
The constant matrix is
The augmented matrix is
![\left[ { \begin {array} {cc} 10&0& | 10\\-5&-8& | 9\\ \end {array}} \right]](https://tex.z-dn.net/?f=%5Cleft%5B%20%7B%20%5Cbegin%20%7Barray%7D%20%7Bcc%7D%2010%260%26%20%7C%2010%5C%5C-5%26-8%26%20%7C%209%5C%5C%20%5Cend%20%7Barray%7D%7D%20%20%5Cright%5D%20%20)
