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標題:
F.1數學問題(英文) ..幫幫手唔該.
發問:
幫手解答以下問題.. Mr. Chung's age is 8 times his daughter's age this year. 12 years later, the sum of their age will be 87. How old is Mr. Chung now? 要有列式. thx
最佳解答:
Let x be the age of Mr Chung' daughter this year. (x+12)+(8x+12)=87 9x+24=87 9x=63 x=7 Therefore, the age of Mr Chung=8*7=56
Let the age of Mr. Chung and his daughter are x and y x = 8y x + 12 + y + 12 = 87 9y + 24 = 87 y = 7 x = 56 The age of Mr. Chung is 56
F.1數學問題(英文) ..幫幫手唔該.
發問:
幫手解答以下問題.. Mr. Chung's age is 8 times his daughter's age this year. 12 years later, the sum of their age will be 87. How old is Mr. Chung now? 要有列式. thx
最佳解答:
Let x be the age of Mr Chung' daughter this year. (x+12)+(8x+12)=87 9x+24=87 9x=63 x=7 Therefore, the age of Mr Chung=8*7=56
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其他解答:Let the age of Mr. Chung and his daughter are x and y x = 8y x + 12 + y + 12 = 87 9y + 24 = 87 y = 7 x = 56 The age of Mr. Chung is 56
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