Answer :
Let the excess speed limit be y.
According to your question,
25 + 6y = 103
6y = 103 - 25 = 78
y = 78/6 = 13
Thus, the excess speed was 13 mph.
Thus, speed of Rachel = 55 + 13 = 68mph
Thus, Rachel was driving at 68 mph.
According to your question,
25 + 6y = 103
6y = 103 - 25 = 78
y = 78/6 = 13
Thus, the excess speed was 13 mph.
Thus, speed of Rachel = 55 + 13 = 68mph
Thus, Rachel was driving at 68 mph.
When total fine is $103 and speed limit is 55 mph then rachel was driving at 68mph
What is linear equation ?
A equation of order 1 is called linear equation .
Given that a minimum fine of $25 fixed
And Additional fine is $6 for each mile per hour
Let suppose Rachel was driving at y mph more than speed limit
Now we can write expression of total fine as
Total fine = 6+25y
Given that total fine is 103
So we can calculate y as
103= 25+6y
Now simplifying this linear equation
103-25=6y
78=6y
y=13
Given that speed limit was 55mph
Hence Rachle's speed = 55+13=68 mph
When total fine is $103 and speed limit is 55 mph then rachel was driving at 68mph
To learn more about linear equations visit :https://brainly.com/question/2263981