Final answer:
The combined mass of Earth and Venus is 10.87×1024 kg, and it would take approximately 183 combined Earths and Venuses to equal the mass of the Sun.
Step-by-step explanation:
The student asked two questions:
What is the combined mass of Earth and Venus?
How many times do the combined mass of Earth and Venus fit into the mass of the Sun?
To answer part (a), we add the mass of Earth and Venus:
Mass of Earth + Mass of Venus = 5.97×1024 kg + 4.9×1024 kg = 10.87×1024 kg.
For part (b), we divide the mass of the Sun by the combined mass of Earth and Venus:
Mass of the Sun / Combined mass of Earth and Venus = 1.99×1030 kg / 10.87×1024 kg.
After performing the division, we find that approximately 183 Earths and Venuses would be needed to equal the mass of the Sun.