Question

2. Mars takes 1 Mars-year to orbit the sun, which is equivalent to 687 Earth-days. The distance traveled by Mars in a single orbit around the sun is approximately 888,000,000 miles. To the nearest thousand, what is the average speed of Mars, in miles per hour, as it orbits the sun? A) 36,000 B) 54,000 C) 37,000,000 D) 1,292,5764. If 9 x 2c = 42, what is the value of 3c + 5?

Answer 1

B) 54,000

Step-by-step explanation:

`\text{Average Spe}ed=(Dis\tan ce)/(Time)`

Distance covered = 888,000,000 miles.

Time taken = 687 Earth-days.

We convert to hours.

`\begin{gathered} 687Earth-days=687*24 \\ =16,488\text{ hours} \end{gathered}`

Thus, the average speed of Mars, in miles per hour is:

`\begin{gathered} =(888,000,000)/(16,488) \\ =53857\text{ mph} \\ \approx54,000\text{mph (to the nearest thousand).} \end{gathered}`

The correct choice is B.