NASA's Perseverance Rover was launched on July 30,2020. After traveling 292526838 miles, it landed on Mars in Jezero Crater about 6.5 months later. Which of the following is closest to the Rover's average interplanetary speed in miles per hour?
A. 6000
B. 12000
C. 60000
D. 120000
E. 600000

Distance = speed × time中文
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C. 60000

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