Answer:
Bill is 25 years old and Jenny is 29 years old
Step-by-step explanation:
Systems of Equations:
J = 4 + B
J + B = 54
Substitute J into the first equation.
4 + B + B = 54
Add like terms.
4 + 2B = 54
Isolate the variable.
4 + 2B = 54
-4 -4
2B = 50
2B/2 = 50/2
B = 25 years old
Plug in B into the second equation of the system.
J + B = 54
J + 25 = 54
Isolate the variable.
J + 25 = 54
-25 -25
J = 29 years old
Check your answer. Pick whatever equation in the system and plug in your answers.
J = 4 + B
29 = 4 + 25
29 = 29
Given:
f(x) = (x - 5)/8
g(x) = 8x + 5
Therefore
This means that g(x) is the inverse of f(x) and vice versa.
Answer: g(f(x)) = x
Answer:
7.798825982752825786274184625289497149185
Step-by-step explanation:
because the numbers do not repeat
Answer: M is the coefficient
Step-by-step explanation:
You can use CPCTC:
I would go with the third option; <span><em>AB and XY, AC and XZ, BC and YZ</em></span>