4 years ago,mary's age was1/4 of her mother's.mary is now 15 years old.how old.how old is is her mother now
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4 years ago,mary's age was1/4 of her mother's.mary is now 15 years old.how old.how old is is her mother now
4 years ago,mary's age was1/4 of her mother's.mary is now 15 years old.how old.how old is is her mother now
4 years ago,mary's age was1/4 of her mother's.mary is now 15 years old.how old.how old is is her mother now
设Mary的妈妈今年X岁
1/4(X-4)=15-4
解得X=48
4年前,M的年龄是他妈的1/4现在M15岁了,他妈妈多少岁
四年前M11岁,妈妈44岁
四年后妈妈48岁就是现在是48岁
48
设mother现在的age为x
(x-4)*1/4=15-4
x=48
1
设为x,则:(x-4)/4=15-4
48岁。
设妈妈今年的年龄是x岁
1/4(x-4)=15-4
解得x=48
4年前玛利的年龄是她母亲的四分之一,玛利现在15岁,她妈妈现在几岁
设她母亲年龄为X,(X-4/)4+4=15, X=48
4 years ago,mary's age was1/4 of her mother's.mary is now 15 years old.how old.how old is is her mother now
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