please help me to answer it!!!
The weight of an adult skeleton accounts for about 18% of the total body weight.The femur in the upper of the leg is the longest bone in the body and its length is about 27% of an adult's height.
1)What is the weight of skeleton of a 75 kg adult?
2)How heavy would an adult be his/her skeleton weighted 15.3kg?
3)If the length of the femur in an adult corpse was 37.8cm,find the height of the adult.
!!maths!!!help me..
2007-01-20 5:40 pm
回答 (2)
2007-01-20 5:55 pm
1) 18% of 75kg
= 75kg x 18/100
= 3kg x 18/4 (删掉75 = 3 和 100 = 4)
= 3kg x 9/2 (删掉 18 = 9 和 4 =2)
= 27/2 kg
= 13 1/2 kg (或 13.5 kg) Skeleton's weight
2) 15.3kg x 100/18 (reciprocal = 【數】倒數)
= 1530/18 kg
= 85kg Body weight
3) as 2)
37.8cm x 100/27
approx = 3780/27
approx = 140 cm Body height
= 75kg x 18/100
= 3kg x 18/4 (删掉75 = 3 和 100 = 4)
= 3kg x 9/2 (删掉 18 = 9 和 4 =2)
= 27/2 kg
= 13 1/2 kg (或 13.5 kg) Skeleton's weight
2) 15.3kg x 100/18 (reciprocal = 【數】倒數)
= 1530/18 kg
= 85kg Body weight
3) as 2)
37.8cm x 100/27
approx = 3780/27
approx = 140 cm Body height
2007-01-20 5:46 pm
1
the weight of skeleton of a 75 kg adult
=75*18%
=13.5 kg
2
the weight of an adult which the skeleton weighted 15.3kg
=15.3/18%
=85 kg
3
the height of the adult
=37.8/27%
=140 cm
=1.4 m
the weight of skeleton of a 75 kg adult
=75*18%
=13.5 kg
2
the weight of an adult which the skeleton weighted 15.3kg
=15.3/18%
=85 kg
3
the height of the adult
=37.8/27%
=140 cm
=1.4 m
收錄日期: 2021-04-12 20:23:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070120000051KK00720