Body mass index (BMI) is a measurement that helps determine obesity, with a BMI of 30 or greater indicating that the person is obese. BMI is directly proportional to the weight of a person of a given height.
a. if the BMI of a person who id 1.7 meters tall is 20 when the person weighs 55 kilograms, what is the constant of the variation?
b. The person of this height has a BMI of 32, what do they weigh?
a. The constant variation is ?
b. The person weighs ? kg.