A prolific construction company based in Las Vegas and owned by the Marnell family. In 2005, formed a separate company â M Resorts â to create The M Resort (opening 2009 with 400 rooms) in south Las Vegas. The M Resort will be designed by Marnell Architecture and built by Marnell Corrao Associates.
Get help from a doctor now âº. Depnds on her height: Assuming an average 8 year old girl of 50 inches (50th percentile), the average weight is 57 lbs (a body mass index (bmi) of 50th percentile).. Get help from a doctor now âº. Depnds on her height: Assuming an average 8 year old girl of 50 inches (50th percentile), the average weight is 57 lbs (a body mass index (bmi) of 50th percentile). Bmi isn't a perfect measure so there are variations based on body type, especially muscle mass.
To arrive at this number, divide weight in pounds by height in inches and then divide this number by height in inches again. From there, multiply this number by 703 to arrive at your childâs BMI. An 8-year-old boy weighing 50 lbs. at a height of 4 feet 1 inch tall has a BMI of 14.6.This number is then placed on a growth chart to arrive at a percentile.n 8-year-old boy weighing 50 lbs. at a height of 4 feet 1 inch tall has a BMI of 14.6. This number is then placed on a growth chart to arrive at a percentile.