Question

The diameter of the equator of Saturn is 74,897 miles. This is about 945% of the diameter of Earth at its equator. To the nearest ten miles, find the diameter of Earth at its equator.

Answer 1

A percent of any number is that number multiplied by the percent number and divided by 100.

10% of 900 is 900 * 10/100 = 90.

945% of Earth's diameter = Earth's Diameter * 945/100 = 74,897 miles.

Calculate Earth's Diameter from there.