A missile flies 6,000 miles at a speed of r mph. If the missile flies at a speed of r + 500 miles per hour, it would fly the same distance in 2 hours less. What is the value of r?
Select the correct option:  A) 1,500 mph  B) 1,000 mph  C) 800 mph  D) 1,200 mph  E) 1,050 mph
Equation: 6,000/r = 6,000/(r + 500) + 2   Plug options into the equation:   1,000 mph fits: 6,000/1,000 = 6,000/(1,000+500) + 2   Answer: 1,000 mph
<result>B</result>
A missile flies 6,000 miles at a speed of r mph. If the missile flies at a speed of r + 500 miles per hour, it would fly the same distance in 2 hours less. What is the value of r?