Answer:
Multiply row 2 by-1 and add it to row 3.
Step-by-step explanation:
The given augmented matrix is ![\left[\begin{array}{ccc}3&-21&15\\15&8&15\\-2&-1&3\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-21%2615%5C%5C15%268%2615%5C%5C-2%26-1%263%5Cend%7Barray%7D%5Cright%5D)
The permissible row operations are:
1. Switching rows
2. Multiplying a row by a nonzero constant.
3. Adding/Subtracting two rows
Therefore the correct option is: Multiply row 2 by-1 and add it to row 3.
Hi there! The unit rate per carton is $4.
To find our answer we must divide the total cost by the total cartons bought.
$ 48 / 12 = $4
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Exact Form:
7/3
Decimal Form:
2.¯3
Mixed Number Form:
2/1/3
Answer:
11 per hour
Step-by-step explanation:
130 - 20=110/(6+4)=11
Answer:
Answer is 3.5
Step-by-step explanation:
slope is 7/2 which is 3.5:)
