Playing games is fun and all, but math is also fun. Post random math equations that you have solved or seen that you found interesting.One that I did yesterday: What would the result be if every human on Earth opened their mouth at once and filled it with water from the ocean?Known informationAverage surface area of an adult's mouth: ~214.7 centimeters^2Estimated volume of the world's oceans: 1.3 billion kilometers^3Population of the earth as of 2014: ~7,000,000,000Using this information, we can begin to solve.Converting centimeters to meters to kilometers~214.7 centimeters becomes 2.147 becomes 0.002147 kilometersUsing this information, letting x = the total capacity of a human mouth for waterx = 0.002147 x 7,000,000,000x = 15,029,000x = 15,029,000 kilometers^3Also known as ~15 million kilometers^3As you can already tell, this is nowhere near to the estimated volume of the ocean.In fact, we can see the difference with another equation.Letting y = the difference in the estimated volume of the ocean and the capacity of all human mouths on earthy = 15,000,000,000 - 15,000,000y = 14,985,000,000 kilometers^3As a matter of fact, we would barely make a dent in the ocean's capacity. Really makes you think how big the Earth really is, huh.If I made any mistakes in my math, please point them out
