Answer:


Step-by-step explanation:
Given

Solving (1): k(2)
Take t as 2 such that t = 2
This gives



Solving (2): k(t) = 7
Substitute 7 for k(t)

Add 1 to both sides


Divide both sides by 2


Answer:

Step-by-step explanation:
First, you add 66 to both sides so then the equation you are trying to solve will be: 
Finally, you simplify and get: 
Hope this helped!
I think there is a .5 percent chance i added all numbers and divided by 6[the blue marbles]
A represents the speed of the aircraft.
b represents the speed of the bus.
a=2b-5
114/b=218/a
Substitution method
114/b=218/(2b-5)
(2b-5)*(114/b)= 218
(228b-570)/b = 218
228b-570= 218b
228b-218b=570
10b= 570
b=57
Plug the value of b into one of the original equations.
a=2(57)-5
a=114-5
a=109
Final answer:
Average speed of plane= 109
Average speed of bus= 57