Two matrices are the same if the entries of the two matrices in the same row and column are the equal.
For this equation to hold, we need
5x - 8 = 2
5x = 10
x = 2
Set up as for portion with X as unknown number of gray cats. So 1/3=x/9. Cross multiply. 3X=9. Divide both sides by 3. X=3.
A2 + b2 = c2
Number 1 is 15.1986.... or 15.2
Explanation: 5 squared is 25 and 16 squared is 256. Subtract 256 minus 25 to get 231, then divide it by the square root.
Number 2 is 7.21111.... or 7.2
Explanation: 6 squared plus 4 squared is 52, square root of 52= 7.2
There are 16 oz in a pound so 16*.75=12
