鍒濅腑鏁板璇曞嵎
鐏胯嫢瀵掓槦鏁寸悊鍒朵綔
绗笁绔犱竴鍏冧竴娆℃柟绋嬪崟鍏冩祴璇曢
涓�銆侀�夋嫨棰?/p>
(
姣忛
3
鍒嗭紝鍏?/p>
30
鍒?/p>
)
1
锛庝笅鍒楁柟绋嬩腑锛屼竴鍏冧竴娆℃柟绋嬫槸
(
)
A
锛?/p>
2a=1
B
锛?/p>
3y
飥?/p>
5
C
锛?/p>
3+7=10
D
锛?/p>
x
2
+x=l
2
锛?/p>
A
绉嶉ギ鏂欐瘮
B
绉嶉ギ鏂欏崟浠峰皯
1
鍏冿紝灏忓嘲涔颁簡
2
鐡?/p>
A
绉嶉ギ鏂欏拰
3
鐡?/p>
B
绉嶉ギ鏂欙紝涓�鍏辫姳浜?/p>
13
鍏冿紝濡?/p>
鏋滆
B
绉嶉ギ鏂欏崟浠蜂负
x
鍏?/p>
/
鐡讹紝閭ｄ箞涓嬮潰鎵�鍒楁柟绋嬫纭殑鏄?/p>
(
)
A
锛?/p>
2(x
飥?/p>
1)+3x=13
B
锛?/p>
2(x+1)+3x=13
C
锛?/p>
2x+3(x+1)=13
D
锛?/p>
2x+3(x
飥?/p>
1)=13
3
锛庝笅鍒楀彉褰㈡纭殑鏄?/p>
(
)
A
锛?/p>
4x
飥?/p>
5=3x+2
鍙樺舰寰?/p>
4x
飥?/p>
3x=
飥?/p>
2+5
B
锛?
2
1
1
3
3
2
x
x
飥?/p>
飥?/p>
飥?/p>
鍙樺舰寰?/p>
4x
飥?/p>
6=3x+18
C
锛?/p>
3(x
飥?/p>
1)=2(x+3)
鍙樺舰寰?/p>
3x
飥?/p>
1=2x+6
D. 3x=2
鍙樺舰寰?/p>
x=
2
3
4
锛庤В涓?/p>
x=5
鐨勬柟绋嬫槸
(
)
A. 5x+2=7x
飥?/p>
8
B. 5x
飥?/p>
2=7x+8
C
锛?/p>
5x+2=7x+8
D
锛?/p>
5x
飥?/p>
2=7x
飥?/p>
8
5
锛庡凡鐭?/p>
2
鏄叧浜?/p>
x
鐨勬柟绋?/p>
3x+a=0
鐨勪竴涓В锛庨偅涔?/p>
a
鐨勫�兼槸
(
)
A
锛?/p>
飥?/p>
6
B
锛?/p>
飥?/p>
3
C
锛?/p>
飥?/p>
4
D
锛?/p>
飥?/p>
5
6
锛?/p>
鐝暱鍘绘枃鍏峰簵涔版瘯涓氱暀瑷�鍗?/p>
50
寮狅紟
姣忓紶鏍囦环
2
鍏冿紝
搴楄�佹澘璇村彲浠ユ寜鏍囦环涔濇姌浼樻儬锛?/p>
鍒欑彮闀垮簲浠?/p>
(
)
A
锛?/p>
45
鍏?/p>
B
锛?/p>
90
鍏?/p>
C
锛?/p>
10
鍏?/p>
D
锛?/p>
100
鍏?/p>
7
锛庤嫢鏂圭▼
6x+3a=22
涓庢柟绋?/p>
5(x+1)=4x+7
鐨勮В鐩稿悓锛屽垯
a
鐨勫�兼槸
(
)
A
锛?
10
3
B
锛?/p>
3
10
C
锛?/p>
10
3
飥?/p>
D
锛?/p>
3
10
飥?/p>
8
锛庤嫢
1
飥?/p>
(2
飥?/p>
x)=1
飥?/p>
x
锛屽垯浠ｆ暟寮?/p>
2x
2
飥?/p>
7
鐨勫�兼槸
(
)
A
锛?/p>
飥?/p>
5
B
锛?/p>
5
C
锛?/p>
1
D
锛?/p>
飥?/p>
1
9
锛庢煇涔﹀簵鎶婁竴鏈柊涔︽寜鏍囦环鐨勪節鎶樺嚭鍞紝浠嶅彲鑾峰埄
20
锛咃紟鑻ヨ涔︾殑杩涗环涓?/p>
21
鍏冿紝鍒欐爣浠蜂负
(
)
A. 26
鍏?/p>
B
锛?/p>
27
鍏?/p>
C
锛?/p>
28
鍏?/p>
D
锛?/p>
29
鍏?/p>
10
锛?/p>
濡傚浘锛?/p>
瀹戒负
50 cm
鐨勯暱鏂瑰舰鍥炬鐢?/p>
10
涓浉闂寸殑灏忛暱鏂瑰舰鎷兼垚锛?/p>
鍏朵腑涓�涓皬闀挎柟褰㈢殑闈㈢Н涓?/p>
(
)
A
锛?/p>
400 cm
2
B. 500 cm
2
C
锛?/p>
600 cm
2
D
锛?/p>
4000 cm
2
浜屻�佸～绌洪
(
姣忕┖
3
鍒嗭紝鍏?/p>
30
鍒?/p>
)
11
锛?/p>
灏忔槑鍑嗗涓哄笇鏈涘伐绋嬫崘娆撅紝
浠栫幇鍦ㄦ湁
20
鍏冿紝
浠ュ悗姣忔湀鎵撶畻瀛?/p>
10
鍏冿紝
鑻ヨ
x
鏈堝悗浠栬兘鎹愬嚭
100
鍏冿紝
鍒欏彲鍒楁柟绋嬩负
______________.
12
锛庝竴涓暱鏂瑰舰鍛ㄩ暱鏄?/p>
42
cm
锛屽姣旈暱灏?/p>
3
cm
锛屽鏋滆闀夸负
x
cm
锛岄偅涔堟牴鎹鎰忓垪鏂圭▼涓?/p>
______________
锛?/p>
13
锛?/p>
鏌愬晢鍝佺殑浠锋牸鏍囩宸蹭涪澶憋紝
鍞揣鍛樺彧鐭ラ亾
鈥滃畠鐨勮繘浠蜂负
80
鍏冿紝
鎵撲竷鎶樺敭鍑哄悗锛?/p>
浠嶅彲鑾峰埄
5
锛呪�?/p>
锛?/p>
浣?
璁や负鍞揣鍛樺簲鏍囧湪鏍囩涓婄殑浠锋牸涓?/p>
_______
鍏冿紟
14
锛庤嫢
9a
x
b
3
涓?/p>
飥?/p>
7a
3x
飥?/p>
4
b
3
鏄悓绫婚」锛屽垯
x=________
锛?/p>
15
锛庡綋
m=________
鏃讹紝浠ｆ暟寮?
5
3
m
飥?/p>
鐨勫�兼槸
2
锛?/p>
16.
鏌愭牎涓?/p>
(1)
鐝殑鐢风敓姣斿コ鐢熷
2
浜猴紝
濂崇敓鍗犲叏鐝汉鏁扮殑
48%
锛?/p>
杩欎釜鐝敺鐢熸湁
_____
浜猴紝
濂崇敓鏈?/p>
___
浜猴紟
17.
宸茬煡
x=
2
3
鏄竴鍏冧竴娆℃柟绋?/p>
3(m
飥?/p>
3
4
x)+
3
2
x=5m
鐨勮В锛屽垯
m
鐨勫�兼槸
_____
__
锛?/p>
18.
浠庣敳鍦板埌涔欏湴锛?/p>
鍏叡姹借溅鍘熼渶琛岄┒
7 h
锛?/p>
寮�閫氶珮閫熷叕璺悗锛?/p>
杞﹂�熷钩鍧囨瘡灏忔椂澧炲姞浜?/p>
20 km
锛?/p>
鍙渶
5 h
鍗冲彲鍒拌揪锛庣敳銆佷箼涓ゅ湴鐨勮矾绋嬫槸
_____
___
锛?/p>
19
锛?/p>
x=9
鏄柟绋?
1
2
3
x
b
飥?/p>
飥?/p>
鐨勮В锛岄偅涔?/p>
b=_______
锛庡綋
b=l
鏃讹紟鏂圭▼鐨勮В涓?/p>
_______
锛?/p>