Answer:
The family formed by these numbers is 3x where x is any integer number.
Step-by-step explanation:
We have been given 3 9 12
We can see that given numbers are multiple of 3 so, we can say that the given numbers are from the family of 3x
Where x is any integer number when multiplied by 3 will give the multiple of 3.
z = 8.2
6.7z = 5.2z + 12.3
combine like terms by subtracting 5.2z from both sides
1.5z = 12.3
divide by 1.5
Reflection on x-axis;
A(4,-5)=A'(4,5)
6 times
24 / 4 = 6
