# Blood

In human body the blood is about 7.3% body weight. How many kilograms of blood is in the human body with weight 109 kg?

Result

x =  7.957 kg

#### Solution:

$m = 109 \ kg \ \\ \ \\ x = m \cdot \ \dfrac{ 7.3 }{ 100 } = 109 \cdot \ \dfrac{ 7.3 }{ 100 } = 7.957 = 7.957 \ \text{ kg }$

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