更新1:
The answer is 41.5kg,but I don't know how to 列方程 of this question
F1.MATHS Algebraic Expression
2011-10-18 3:50 am
Carmen weights y kg and Fanny is 10kg heavier than Carmen.If their total weight is 73 kg,find the weight of Fanny.
回答 (2)
2011-10-18 4:01 am
✔ 最佳答案
Carmen weights y kg,Fanny is 10kg heavier than CarmenTherefore Fanny weights y+10 kg
y+y+10=73
y=31.5
Fanny weights y+10 kg
So Fanny weights 41.5 kg
2011-10-18 4:01 am
It's pleased to solve your problem.
Let Fanny's weight be x
y=x-10 --- (1)
x+y=73 --- (2)
Put(1) into (2)
x+x-10=73
2x=83
x=41.5
Hence, Fanny's weight is 41.5kg
Let Fanny's weight be x
y=x-10 --- (1)
x+y=73 --- (2)
Put(1) into (2)
x+x-10=73
2x=83
x=41.5
Hence, Fanny's weight is 41.5kg
參考: myself
收錄日期: 2021-04-26 12:07:18
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