A plane flies 500 miles at a speed of r mph. If the plane flies at a speed of r + 250 miles per hour, it would fly the same distance in 1 hour less. What is the value of r?
Choose the correct choice from the following answers: A) 250 mph B) 200 mph C) 205 mph D) 300 mph E) 425 mph
Equation: 500/r = 500/(r+50) + 1   Plug options into the equation   250 mph fits: 500/250 = 500/(250+250) + 1   250 mphnswer: 250 mph
<result>A</result>
A plane flies 500 miles at a speed of r mph. If the plane flies at a speed of r + 250 miles per hour, it would fly the same distance in 1 hour less. What is the value of r?