Question 1125378
18.14 million people owned a smart phone that ran google android operating system.


the google android operating system is used on 28.7% of all smart phones.


let x = the number of people who owned smart phones.


your equation is 18.14 million = .287 * x


solve for x to get x = 18.14 million / .287 = 63.20557491 million.


that's the number of people who owned smart phones in december of 2010.