Question

PLZ HELP WILL GIVE 40 POINTS!

Astronomers observed a planet orbiting a distant star. They expected the planet to orbit the star approximately 1 7/8 times every 4 earth years. About how many earth years will it takr the planet to orbit the star once?

a. 15/32
b. 7 1/2
c. 2 2/15
2/15

Answer 1

The answer is c) 2 2/15

If it takes 1.875 (1 7/8) times in 4 years, divide by 4 to figure out how many times it orbits every year. This is 0.46875. 0.46875 times 2 2/15 is 1. So it takes 2 2/15 years for the planet to orbit the star once.