Answer:
The answer to your question is x = 4d/t - S1
Step-by-step explanation:
Data
total time = t = 2.75 hours
Initial speed = S1 = 55 mi/h
Final speed = x
distance = d = 60 mi
Formula
speed = distance / time
Average speed = (Initial speed + final speed)/2 or
= (S1 + x)/2
Substitution
(S1 + x)/2 = 2(d) / t
Solve for x
x = (2d/t)2 - S1
Simplification and result
x = 4d/t - S1
Answer:
23%
Step-by-step explanation:
Step-by-step explanation:





Hope this is correct and helpful
HAVE A GOOD DAY!
Answer:
Slope (m) = 
Step-by-step explanation:

X = 4 – 1 = 3
Y = 4 – 2 = 2

Equation of the line:
y = 0.66666666666667x + 1.3333333333333
or

When x=0, y = 1.3333333333333
When y=0, x = -2