A state has a graduated fine system for speeding, meaning you can pay a base fine and then have more charges added on top. For example, the base fine for speeding is $100. But that is just the
start. If you are convicted of going more than 10 mph over the speed limit, add $15 for each additional mph you were traveling over the speed limit plus 10 mph. Thus, the amount of the fine y (in
dollars) for driving x mph while speeding (when the speed limit is 65 miles per hour) can be represented with the equation below.
y= 15(x-75) + 100,x275
If someone was fined $205 for speeding, how fast were they going?