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by CamScanner from 32=(m179。)答:603030247。(1533)=400(盒)答:2 =(dm179。)答:1610 =2000(㎏)答:Generated by CamScanner from 64247。2 =12(c㎡)55247。2=(c㎡)面積變大46247。2 =12(c㎡)面積不變高增加和底減小的數(shù)值越大,面積越小。高加3cm,底減小3cm, c㎡6247。()=≈169(塊)設(shè)兒子為x,則妻子為x/2,女兒為 x/+x/2+x/4=1x=4/7妻子2/7,女兒1/7數(shù)學(xué)家的意思是妻子能繼承的財(cái)產(chǎn)只能是兒子的一半,而女兒能繼承的財(cái)產(chǎn)只能是妻子的一半Generated by CamScanner from 5/3 6 5 15 1/51251/71/81/71/87/87/157/87/151/991/100 1/991/100CD S=(84+87+47)2 =232(c㎡)V=874=224(cm179。)(5045)247。45100%≈% 答:(5004)247。500100%=% 答:150(115%)=(元)答:(1/2+1/3)247。1/6=5(1/21/3)247。1/6=1 2/37/12 2/5 31452 90 √Generated by CamScanner from Generated by CamScanner from =(3/43/10)247。6/25=19/6=15/8=1/2=1=157/21=2/25解:設(shè)有大船x只,則小船有10x只6x+4(10x)=44x=2102=8(只)答:解:設(shè)5元有x張,則2元有18x張 5x+2(18x)=60 x=8 188=10答: 450 251900Generated by CamScanner from (20+16+12)4247。12 =16(cm)答:32247。2 =3(c㎡)45=20(c㎡)(9+)4247。2=(c㎡)1/3 2/31/4 3/4Generated by CamScanner from 9 2/21C5/21 9/2 BB=0=3/2=13/6=0解:x=1/5解:x=49/51解:X=14/55Generated by CamScanner from (51030)247。3=160(棵)1602+30=350(棵)答:12247。=(㎏)12247。()=(㎏)12247。(+)=(㎏)Generated by CamScanner from 3/8 %3/8 %==52+2844 =36=17/12=24√ √Generated by CamScanner from 106+1012247。2(4+3+4+8)10247。233 =86(c㎡)=120(c㎡)1/32/33/3 5/34/3 16Generated by CamScanner from 2 9 =4/15247。5/12=16/255/12915/16247。5 =15/43/16=57/16cm179。 mL Ldm179。mLm179。Generated by CamScanner from 30247。(30+30+20)=3/8答:384=152(元)15280%=(元)Generated by CamScanner from √ 3/5 7/514/524/513解:x=5/6解:x=解:x=6/7解:x=10(132+144+144+136+132+138+144+139)247。8= 中位數(shù):138,144 眾數(shù):144Generated by CamScanner from 解:設(shè)從乙袋中取x千克倒入甲袋,2()=+xx=答: 解:設(shè)有羊x頭,則牛有2/5x+28頭 x+2/5x+28=980x=680 6802/5+28=300答:Generated by CamScanner from =6410= 18450 == =17/24=3/471(1+1/10)= (升)Generate