Answer :
Answer:
1) 16.5.
2) 14.9.
3) 18.8.
Step-by-step explanation:
First of all, let's refer to the formulas for calculating BMI:
[tex]BMI=\frac{weight(kg)}{height^{2}(m) }=\frac{weight(lb)}{height^{2}(in) }[/tex]
Taking into consideration that the weight and height we have are in kg's and cm, let's choose the first formula to simplify the calculations:
[tex]BMI=\frac{weight(kg)}{height^{2}(m) }[/tex]
1. Maria Jose's weight is 20 kgs and her height is 110 cm. Get the BMI.
First, we need to convert the hight from cm to m:
[tex]\frac{110cm}{100} =1.1m[/tex]
Calculate BMI:
[tex]BMI=\frac{20(kg)}{1.1^{2}(m) }=\frac{20}{1.21} =16.5.[/tex]
(Rewriting calculations):
20 / (1.1)²=
30 / 1.21 =
16.5.
2.Freya's weight is 30 kgs and her height is 142 cm. What is Freya's BMI?
First, we need to convert the hight from cm to m:
[tex]\frac{142cm}{100} =1.42m[/tex]
Calculate BMI:
[tex]BMI=\frac{30(kg)}{1.42^{2}(m) }=\frac{30}{2.0164} =14.9.[/tex]
(Rewriting calculations):
30 / (1.42)²=
30 / 2.0164 =
14.9.
3. Sam's weight is 50 kgs and his height is 163 cm. What is Sam's BMI?
First, we need to convert the hight from cm to m:
[tex]\frac{163cm}{100} =1.63m[/tex]
Calculate BMI:
[tex]BMI=\frac{50(kg)}{1.63^{2}(m) }=\frac{50}{2.6569} =18.8.[/tex]
(Rewriting calculations):
50 / (1.63)²=
50 / 2.6569 =
18.8.
