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Maths Puzzle
Percentage
What is the %Body fat of a man that weighs 156 pounds (b) and has a waist measurement of 32 inches (w)?
(-98.42 + 4.15(w) - 0.082b)/b
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Book Other Question
Robert is 14 years old and his father is 38 years old. How many years ago was the father exactly seven time as old as his son?
how i can solve this equation.
x + y^(.5) = 7
y + x^(.5) = 11