1Iftheequation（方程）m(x-1)=2001-n(x-2)forxhasinfiniteroots（无限个根）,thenm的2001次方+n的2001次方=2Wehavethefollowingnumbers9/5,12/7,27/17,36/19,54/29,themaximum(最大的)numberamongthemis(),theminimum（

Question

1 If the equation（方程） m(x-1)=2001-n(x-2) for x has infinite roots（无限个根） ,then m的2001次方+n的2001次方=
2 We have the following numbers 9/5,12/7,27/17,36/19,54/29,the maximum (最大的)number among them is (),the minimum（最小的） number is ().
3 The admission price per child at an amusement park（游乐园） is 5/9of the admission price(入场费) per adult.If the admission price for 6 adult and 3 children is 276 yuan ,then the admission price per adult is ()
A24 B32 C36 D40
4 The sequence(序列) 1/1,1/2,2/2,1/3,2/3,3/3,4/1,4/2,4/3,4/4,5/1,5/2,等等,then the 2003rd number is ()

Answer 1

1 If the equation（方程） m(x-1)=2001-n(x-2) for x has infinite roots（无限个根） , then m的2001次方+n的2001次方= 0
因为X有无限个根,所以先令X＝1,得出0＝2001－n(-1),再令X＝2,得出m=2001
所以m=2001,n=-2001.
所以m的2001次方+n的2001次方=0
2 We have the following numbers 9/5,12/7, 27/17, 36/19,54/29,the maximum (最大的)number among them is (36/19),the minimum（最小的） number is (27/17).
3 The admission price per child at an amusement park（游乐园） is 5/9of the admission price(入场费) per adult. If the admission price for 6 adult and 3 children is 276 yuan , then the admission price per adult is (C 36)
A24 B32 C36 D40
设儿童票X元,成人票Y元
由题意得x=5/9y,6y+3x=276
联立方程组解得x=20,y=36.
4 The sequence(序列) 1/1,1/2,2/2,1/3,2/3,3/3,4/1,4/2,4/3,4/4,5/1,5/2,等等,then the 2003rd number is ()
个人觉得这道题的题干有点问题,现在还在思考中,ing~ing~ing~ing~