Answer:

Step-by-step explanation:
The question we have at hand is, in other words,
- where we have to solve for the value of 
If we have to isolate
here, then we would have to take the inverse of the following matrix ...
... so that it should be as follows ... 
Therefore, we can conclude that the equation as to solve for "
" will be the following,
- First find the 2 x 2 matrix inverse of the first portion,
=
=
=
At this point we have to multiply the rows of the first matrix by the rows of the second matrix,
,
- Simplifying this, we should get ...
... which is our solution.
The distance around the bulletin board would be 20 feet, because you multiply 6ft 2x and 4ft 2x.
283.5 because 6.75 times 21 is 141.75 then u need to mulitply it by 2.
First, we need to find the GCF (greatest common factor) of each of the number.
1. List out the prime factors of each of them.
2. Multiply the prime factors that the two numbers have in common
60 = 2 × 2 × 3 × 5
84 = 2 × 2 × 3 × 7
The common factors are: 2 and 3
GCF = 2 × 2 ×3
GCF = 12
Factor out 12 from the equation
12(5x - 7)