Question

In Massachusetts speeding fines are determined by the formula F= 10(x-65) + 50, where F is the cost in dollars of the fine if a person is caught driving x miles per hour. If the fine comes to $250, how fast was that person speeding?

Answer 1

Just put F =250, and re-arrange and solve for x.
\[x=\frac{250-50}{10}+65\]

hence x = 85 miles per hour.

3 miles per hour faster and he would have activated his flux capacitor (assuming he had enough energy in mr fusion to obtain 1.21 Gigawatts)