Answer:
Jo's age = x = 8 years
Step-by-step explanation:
Let
Jo's age = x
Jo's mother, Anne's age = 4x
In four years time, Anne will be three times as old as Jo.
Jo's age =3( x + 4)
Jo's mother, Anne's age = 4x + 4
How old is Jo?
Equate Jo's age and his mother's age
3(x + 4) = 4x + 4
3x + 12 = 4x + 4
3x - 4x = 4 - 12
-x = - 8
Divide both sides by -1
x = 8
Therefore,
Jo's age = x = 8 years
Answer:
x = -21/5 = -4.200
Step-by-step explanation:
Answer:
To me it looks like B
Step-by-step explanation:
RIP King Von
A.
B.
It's a minimum, becuase 
.
C.
The axis of symmetry is 
. So, in this case, it's 
.
