89.890 Is what I would think it would be. Hope it helped.
Answer:
f, s={36,6} is your answer.
Step-by-step explanation:
PREMISES
6s+9=3(s+9)
ASSUMPTIONS/SUFFICIENT CONDITION(S)
Let the son's current age s=s
Let the father's current age f=6s
CALCULATIONS
6s+9=3(s+9)
6s+9=3s+27
6s-3s+(9–9)=3s-3s+(27–9)
3s+0=0+18
3s=18
3s/3=18/3
s=
6
and,
if s=6, then
6s=
f=
36
PROOF
If f,s=36, 6, then the equations
6s+9=3(s+9)
6(6)+9=3(6+9)
36+9=3(15) and
45=45 establish the roots (zeros) f, s=36,6 of the mathematical statement 6s+9=3(s+9)
Answer:
Option (4)
Step-by-step explanation:
Given system of equations is,
y = -x²- 4x - 3
y = 2x + 5
To get the solution of the system of equations algebraically,
2x + 5 = -x²- 4x - 3
Now combine like terms onto one side of the equation.
-x² - (4x + 2x) - (3 + 5) = 0
x² + 6x + 8 = 0
Then factorize the equation,
x² + 4x + 2x + 8 = 0
x(x + 4) + 2(x + 4) =0
(x + 2) (x + 4) = 0
x = -2, 4
Option (4) is the answer.
Answer:
2
Step-by-step explanation:
270/27 = 10 so each pound is $10
Your mom should know the answer just go ask her! But it is 205 plus 980-13057 which equals to 20
