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Suppose a spacecraft recently started on a journey inside the solar system. The trip is [tex]3.5 \times 10^6[/tex] miles long and will take 9 years. How many miles will the spacecraft travel per year?

The spacecraft will travel [tex]\boxed{\text{miles per year}}[/tex].

(Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest hundredth as needed.)


Sagot :

To determine how many miles the spacecraft will travel per year, we need to follow a series of steps:

1. Determine the total distance of the trip: The spacecraft will travel a total distance of [tex]\(3.5 \times 10^1\)[/tex] miles.

2. Know the duration of the trip: The total time for the journey is 9 years.

3. Calculate the rate of travel per year: To find the number of miles traveled per year, divide the total distance by the total duration of the trip. This is done as follows:
[tex]\[ \text{Miles per year} = \frac{\text{Total distance}}{\text{Total time}} = \frac{3.5 \times 10^1 \text{ miles}}{9 \text{ years}} \][/tex]

4. Perform the division:
[tex]\[ \frac{3.5 \times 10^1}{9} = \frac{35}{9} \approx 3.888888888888889 \text{ miles per year} \][/tex]

5. Round the result to the nearest hundredth: The value 3.888888888888889 rounded to the nearest hundredth is approximately 3.89.

Thus, the spacecraft will travel approximately [tex]\(3.89 \times 10^0\)[/tex] miles per year, which simplifies to 3.89 miles per year.
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