Goal: Think like a mathematician! Read the problem multiple times.
The spacecraft Pioneer 10 was launched on March 3, 1972. Designed to last at least 21 months, it outlived and outperformed the fondest dreams of its creators. On April 25, 1983, Pioneer 10 sent radio signals to Earth from Pluto, 4.58 X 109 km away. Radio signals travel at the speed of light (about 3.00 X 105 km/s). [What was Pioneer 10’s average speed, in kilometers per hour (kph), between March 3, 1972, and April 25, 1983?
Source: Impact Mathematics Algebra and More Course 2
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