Question

Genius Rank help me

Answer 1

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:

$BMI=\frac{weight(kg)}{height^{2}(m) }=\frac{weight(lb)}{height^{2}(in) }$

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:

$BMI=\frac{weight(kg)}{height^{2}(m) }$

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:

$\frac{110cm}{100} =1.1m$

Calculate BMI:

$BMI=\frac{20(kg)}{1.1^{2}(m) }=\frac{20}{1.21} =16.5.$

(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:

$\frac{142cm}{100} =1.42m$

Calculate BMI:

$BMI=\frac{30(kg)}{1.42^{2}(m) }=\frac{30}{2.0164} =14.9.$

(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:

$\frac{163cm}{100} =1.63m$

Calculate BMI:

$BMI=\frac{50(kg)}{1.63^{2}(m) }=\frac{50}{2.6569} =18.8.$

(Rewriting calculations):

50 / (1.63)²=

50 / 2.6569 =

18.8.