2016年中考数学一轮复习 第二单元 方程与不等式综合测试.doc

1、 1 ( 45 100 ) ( 3 24 ) 1 ) 2 x 1 x 2 1 x 3 ( ) A 2 (x 2) 3(x 1) B 2 x 2 3(x 1) C 2 (x 2) 3 D 2 (x 2) 3(x 1) 2 x 2 x 1 4 0 ( ) A x1 1 2 x2 1 2B x1 x2 1 2C x1 2 x2 2 D x1 x2 1 23 ) 2(x ( ) 4 2 x 2 1 x 0 ( ) A x 1 B x 1 C x 2 D x 2 5 P(m 3 m 1) m ( ) A 1 m 3 B m 3 C m 1 D m 1 6 800 1 200 20% ( ) A 9 B

2、8 C 7 D 6 7 5 x m ( ) A m 5 3B m 5 3C m 5 3D m 5 38 (4 ) ( ) A 19 B 18 C 16 D 15 ( 4 16 ) 9 ) 2x _ 10 x 2x a 9 0 x 2 a _ 11 x y x y 3 2x y 6a x yx 1 3 16 (8 ) ( x 2 2x 4 x 1 2 x 2 4x 4 1 x x x 2 4x 3 0. 17 (8 ) a b a(a b) 1 5) 1 3) 1 6 1 5. (1) ( (2) 13 x 18 (8 ) 400 8 8 1 936 88 8 1 936 19 (10 ) 20

3、0 210 000 1 000 (1) 4 (2) 2 (3) 10 120 1 D 2.D 3.A 4.D 5.A 6.B 7.A 8.C 10.5 11.a1 12.(22 x) 300 13. x 3. x 4. 3 x 4. 14.(1) x 1. x 1 y 1. x 1 y 1.(2) 5 x 2 1 x x 1. x 1 (3)(x 2) 2 6.x1 2 6 x2 2 6. 15. x 4. 4. 1 2 3. 16 x 2 2x 4 2 x x 1 x 1 x 2 2 1 x x 2 x 1 1 x x 2 2 1 x 2 . x 2 4x 3 0 x1 1 x2 3. x 1 x 3 1 3 2 1 5 . 17.(1)( 2 3) 1 11. 13 3(3 x) 1 13. 1. 18 x 1 936 x 0.8 1 936 x 88 . x 352. x 352 352 200 200 3 2 300( ) (2) x 2x (1 000 3x) 200 300(1 000 3x) 210 000. x 300. 5 600 300 100 (3) y (1 000 y) 200(1 000 y) 000 10 120. y 201. 201