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将分数五分之三,十五分之四,十二分之五,十二分之十一按从小到大的顺序用小于号连接起来好的话加15分,写的详细者加30分!偶这次真的华丽丽滴拼啦!
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5分之3＝60分之3615分之4＝60分之1612分之5＝60分之2512分之11＝60分之55因为60分之16
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扫描下载二维码解不等式 3分之3x+1-5分之7x-3小于等于2+15分之2(x-2)
解不等式 3分之3x+1-5分之7x-3小于等于2+15分之2(x-2)
(3x+1)/3 - (7x-3)/5 ≤ 2 + 2(x-2)/15 两边同乘以15：5(3x+1) - 3 (7x-3) ≤ 30 + 2(x-2) 15x+5 - 21x+9 ≤ 30 + 2x-4 15x+5 - 21x+9 ≤ 30 + 2x-4 8x ≥ -16x ≥ -2
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与《解不等式 3分之3x+1-5分之7x-3小于等于2+15分之2(x-2)》相关的作业问题
① 3分之1(x-1)²=2分之1(x-1)2(x-1)²=3(x-1)2(x-1)²-3(x-1)=0(2x-2-3)(x-1)=0(2x-5)(x-1)=0x1=5/2 x2=1② 根号3x+22+√3x>(2+√3)/(2-√3)x>(2+√3)(2+√3)/(4-1)x>7+4√3
2(3x+5)+4x(x-4) > -83x+5+2x^2-8x > -42x^2-5x+9 > 0∵方程2x^2-5x+9=0△=(-5)^2-4*2*9=25-72= -47
5x-2≤3x+45x-3x≤4+22x≤6x≤33分之x+8＞-xx+8>-3xx+3x>-84x>-8x>-2所以-2
x小于5/2 再问： 大神 我求过程 再答： 我把题目看错了 再答： 等等 再答： -5＜x＜2 再答： 再问： 真不愧是大神啊 再答： (⊙o⊙)… 再答： 低调。 再答： 题目不难啊。你读几年级啊再问： 高一 哈哈 再答： (⊙o⊙) 再答： 我也就高三。再问： 那对你们来说肯定简单啥再问： 早点睡吧学霸
3（x-2x+2）≤4x-3x+6≤4x6≤7xx≥6/712-3x-12＞2-2x-3x＞2-2x-x＞2x＜-2
x²-x-12／x+1＞0(x+3)(x-4)／x+1＞0(x+3)(x-4)＞0x+3＞0 x-4＞0x＞-3 x＞4
(1)1-3分之x>5+2分之x-3;6-2x＞30+3x-9;5x＜-15;x＜-3;作-3点,往左的部分是解集(2)x+3>4 x＞1；2x
1) 3(2x+5)>2(4x+3) 去括号：6x+15>8x+6 移项：6x-8x>6-15合并：-2x>-9系数化为1：x＜ 9/22)10-4(x-4)≤2(x-1)去括号：10-4x+16≤2x-2移项：-4x-2x≤-2-10-16合并：-6x≤-28系数化为1：x≥14/33)2x-1/3≤3x-4/6去分
1.不等式(x+4)(3-x)>0的解集?变形为:(x+4)(x-3)
(2x＋1)÷4＜(15x－2)÷6－1分之3（6x＋4）两边*12,得3（2x+1)＜2(15x-2)-4(6x+4)展开,6x+3＜30x-4-24x-166x-30x+24x＜-4-16-30＜-23不等式无解集
3x^2+4x-1/3x^2-4x-1=x^2+4x+1/x^2-4x-1两边式子的分子分别凑成分母的形式进行裂项化简,就可以得到：X^2-2=0,所以X=正负根号2 再问： 等下子，为什么我最后算出来为2x的平方=2，x=正负1？ 再答： 嗯，我只是随便算了一下，你是对的。。。再问： 额x=-1时，原式不成立好吧？？
x²－3x－10﹥0(x+2)(x-5)>0x530-x>0x
(1)把X=4代入y=3/4x,得y=3,∴M=3,把X=4,Y=3代入Y=K/X,得3=k/4解得K=12,∴反比例函数解析式为y=12/x&(2)由题意得OM=ON=OA=OB,做AC⊥Y轴于C,由勾股定理得OA=5,∴OM=0N=5,∴M（0,5）,N（0,-5）&(3)S矩形AMBN=4S△
3x＞x-2①x+13＞2x②，解不等式①得，x＞-1，解不等式②得，x＜15，所以，不等式组的解集是-1＜x＜15．
5X-1∠3X+1 2X
解方程：(1又3分之2加8又5分之一):x=15分之2:9分之5（1+2/3+8+1/5）:x=2/15:5/9;2x/15=(5/9)×(148/15);2x/15=148/27;x=370/9;如果本题有什么不明白可以追问,
解；当x≥-2时原不等式为x+2>(3x+14)/55x+10＞3x+142x＞4x＞2当x＜-2时原不等式变为-x-2＞(3x+14)/5-5x-10＞3x+14-8x＞24x＜-3综上所述原不等式的解为x＞2或 x＜-3
x-1+3x/2＞-3 5x-12≤2(4x-3)2x-2+3x＞-6 5x-12≤8x-65x＞-4 5x-8x ≤-6+12x＞-5/4 -3x≤6x ≥-2
去括号，得9x2-12x+12x-16＞9x2+27x-18x-54，移项，得-27x+18x＞-54+16，合并同类项，得-9x＞-38，∴x＜389．[上海证券报]三分之二个股已低于15元 九成个股跌幅大于大盘_期货滚动新闻_新浪财经_新浪网
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[上海证券报]三分之二个股已低于15元 九成个股跌幅大于大盘
　　文华财经（编辑整理 王亚男）--据上海证券报3月19日报道，自上周四上证指数跳空低开收阴以来，最近4个交易日已累计下跌约10%。逾九成个股跌幅大于大盘，520多只个股的股价打了至少八折，15元以下的个股占到总数的2/3。动态市盈率已降至20倍以下，两市总市值也在昨日破位29万亿元。
　　　　自上周四以来，上证综指平均每天下挫百点，大多数个股的损失更加触目惊心。交易中的1440余只个股中，仅(600015)、(601857)、、等12只个股在4个交易日中累计呈上涨，逾九成个股的累计跌幅超过10%，超过1/3的个股累计跌幅逾20%。沪深两市的总市值也在此期间尽失2.6万亿元，继周一破位30万亿元后，昨日跌破了29万亿元。
　　　　割肉盘开始出现的背后，是个股股价结构的剧变。最后一只200元高价股(600519)昨日也最终落马，低价股股价已下探至5元以下。4个交易日以来，30元以上的个股占比从14%降至9.8%，15元以下的低价股也从近五成扩张至六成七，其中8元以下的个股数目增长了1.6倍，达281只。
　　　　2007年上市以来的147只个股中，逾八成已跌破上市首日的收盘价，16只个股与首发价格的差价已不到4元，其中(601939)、(601866)与首发价格的差距已不足5毛钱。
　　　　在绝大多数个股加速跳水时，A股市场的估值水平也骤降。据Wind数据统计，按剔除负值和整体法计算，2008年度沪深300的预测市盈率在昨日跌破20倍；按整体法、剔除负值和前推12个月的净利润数据计算，全部A股的市盈率已从上周三收盘时的30倍跌至昨日的26.9倍。虽然逼近一些市场人士所说的理想价值投资区域，但不少基金公司、投资顾问公司的人士表示在目前系统性风险之下，多持观望态度。
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