Answer:
![X = \left[\begin{array}{cccc}12&-24&8&16\end{array}\right]](https://tex.z-dn.net/?f=X%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7D12%26-24%268%2616%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
A matrix is given by
Now, we have to find the matrix X if
⇒ X = 2A
Now, multiplication of a constant with a matrix means multiplication with that constant with all the terms of the matrix.
So,
⇒
(Answer)
This can be solved using a system of equations.

Subtract y from both sides.

Substitute:

Subtract 80 from both sides:

Divide both sides by 5:

Substitute.
Here it is! Have a nice day. :)
Step-by-step explanation:
please i work on by paper worksheet, see it
how can i work it
Answer:
2062.50
Step-by-step explanation:
Interest = (Principle x rate x time)/100
Amount = Principle + interest
Principle = 750
Rate = 7%
Time = 25 years
(750 x 7 x 25)/100
= 131250/100
=1312.50
Principle = 750
Interest = 1312.50
Amount = 750 + 1312.50
Amount = 2062.50