Question

scientists have detected an asteroid that is 700,000,000 km from earth. about how many astronomical units is that? 0.5 au 1 au 3.5 au 4.5 au

Explanation:

Step1: Know the conversion factor

1 AU is approximately 150,000,000 km.

Step2: Set up the division

Let \(x\) be the number of AU. \(x=\frac{700000000}{150000000}\)

Step3: Calculate the value

\(x=\frac{700}{150}\approx 4.67\) (This is wrong approach. Wait, no! Wait, 1 AU = 150,000,000 km. So for 70,000,000 km (assuming a typo in original problem, maybe it's 70,000,000 instead of 700,000,000. Because 700 million km is about 4.67 AU which is not an option. But if it's 70 million km (70,000,000 km). Then \(x = \frac{70000000}{150000000}=\frac{7}{15}\approx0.47\approx0.5\) AU)

Answer:

A. 0.5 AU