Word Problem - College Alg

Algebra
Tutor: None Selected Time limit: 1 Day

For each planet in a solar system its year is the time it takes the planet to revolve around the center star. The formulae E=0.2x^3/2 models the number of Earth days in a planet's year, E, where x is the average distance of the planet from the center star, in millions of kilometers. There are approximately 224.8 Earth days in the year of Planet B. What is the average distance of Planet B from the center star? (in million kilometers)

May 30th, 2015
224.8=0.2x^3/2
1124=x^3/2
1124^2/3=x
x=108.1 km...........................................rate me 5 star plz


May 30th, 2015

said it is wrong?

May 30th, 2015

it also states do not round until the final answer. then round to the nearest whole number as needed.

May 30th, 2015

108......................................................

May 30th, 2015

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May 30th, 2015
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May 30th, 2015
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