Question

Space station Mir remained in orbit for 15 years and circled Earth. Some 86500 times during its time in space. The longest stay of one cosmonaut was around 680 days. How many times did he fly around the earth approximately?

Answer 1

Given

Times the satellite circled Earth is 86500

Time the satellite was in orbit is 15 years

To find

Number of times an astronaut flew around the Earth.

Solution

$86500\ \text{revolutions in }15\ \text{years}=15\times 365.25=5478.75\ \text{days}$

$\text{In }1\text{ day the satellite completed }\dfrac{86500}{5478.75}=15.79\ \text{revolutions}$

$\text{In }680\text{ days the satellite completed }680\times 15.79=10737.2\approx 10737\ \text{revolutions}$

The cosmonaut flew around the Earth approximately 10737 times.

Answer 2

Step-by-step explanation:

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