我全部都能解答,加我百度HI,我一一解答給你
1.分成三段,也就是多了4個(gè)面,
因?yàn)閷捄透卟蛔?這4個(gè)面面積都一樣
三段木塊的表面積=原木塊的表面積+4倍的寬乘以高
(60*20+60*5+20*5)*2+20*5*4=3600平方厘米
2.設(shè)這個(gè)角為x度
x+(x*2+15)=90
x=25度
這個(gè)角的補(bǔ)角是180-25=155度
3.設(shè)這批零件為1,那么每小時(shí)工作量就是1/200
工作效率提高后的每小時(shí)工作量就是1/200*1.25=1/160
共走60小時(shí)的工作量是60*1/200=3/10
剩余工作量是1-3/10=7/10
剩余時(shí)間就是(7/10)/(1/160)=112小時(shí)
4.設(shè)甲貸款x萬(wàn)元,乙貸款y萬(wàn)元
那么:
4%*x+5%*y=4.4
5%*x+4%*y=4.4+0.2
得到結(jié)果x=60萬(wàn)元,y=40萬(wàn)元
5.設(shè)要分成x組
那么:
6x+3=8x-5
得出x=4
總?cè)藬?shù)=4*6+3=27
所以要分成4組,一共有27個(gè)學(xué)生
6.這個(gè)沒(méi)做
英語(yǔ)的
B C A A D C A B D C B B B A C A D C D B
補(bǔ)充的數(shù)學(xué)馬上送上
正確率,積分給!
正確率,積分給!
1.有一塊長(zhǎng)60厘米,寬20厘米,高5厘米的木快,按它的長(zhǎng)分成三段,求:這三段的表面積和.
2.已知一角的余角比它的2倍大15度,求這個(gè)角的補(bǔ)角.
3、某工廠(chǎng)加工一批零件,需200小時(shí)完成,工作了60小時(shí)后,由于技術(shù)革新,工作效率提高了25 %,還需要多少小時(shí)完成任務(wù).
4、某銀行把若干人民幣分成兩部份分別貸款給甲、乙兩個(gè)經(jīng)營(yíng)者,年利率分別為4%和5%,一年后銀行獲得兩部分利息共計(jì)4.4萬(wàn),如果把兩個(gè)利率交換可增加0.2萬(wàn)元,問(wèn)甲、乙兩人各貸款多少元?
5、某班學(xué)生春游分組活動(dòng)中,每組6人,則多出3人,若每組8人,則有一組少5人,問(wèn)該班學(xué)生共多少人,應(yīng)該分成幾組?
6.請(qǐng)根據(jù) 20分之x+18分之x+4=1 編寫(xiě)一道應(yīng)用題.
( )6.I’d like to _____ a teacher.
A.be B.do C.is D.are
( )7.Mr.Wang _____ work at 8:00a.m.every day.
A.start B.starts C.starting D.started
( )8.I want to be a policeman ______ I like to catch bad guys.
A.so B.because C.for D.as
( )9.--Do you like your job?--Yes,I _____.
A.do B.like C.likes D.did
( )10.My father likes his job and he usually makes sick people _______.
A.better B.well C.good D.best
( )11.She usually does some washing on _______.
A.the evening B.the morning C.Sundays D.night
( )12.Would you like to put _____ fires?
A.out B.on C.up D.down
( )13.The businessman goes into the bank _____ money.
A.to B.about C.of D.for
( )14.Sue is writing a diary _____ her trip to Suzhou.
A.of B.with C.to D.about
( )15.--How do you get to school?-- __________.
A.Take a bus B.In my bike C.On foot D.On the bus
( )1.It will take you half an hour ______ get there.
A.to B.on C.in D.off
( )2.Mum spends one hour ______ food every day.
A.to cook B.cook C.cooking D.cooked
( )3.The power station is ____ far away from our house.
A.quite B.to C.quiet D.very much
( )4.Jack ____ the train to visit his friends.
A.by B.get on C.take D.takes
( )5.I see _____ flowers when I walk around the park.
A.a B.any C.plenty of D.a little
( )6.It took us _____ than two hours to get to the stop.
A.more B.much C.quite D.many
( )7.There are always a lot of ____ in the park at weekends.
A.woman B.man C.people D.child
( )8.Can you find out how long your mother _______ doing housework?
A.spends B.pays C.takes D.costs
( )9.Would you please _____ me the way to the cinema?
A.told B.telling C.to tell D.tell
( )10.Are snacks good ______ bad for us?
A.to B.or C.and D.also
英語(yǔ)不要ABCD亂選~我要正確率,
1、畫(huà)線(xiàn)段AB=3厘米,延長(zhǎng)AB到C,使BC= AB,再延長(zhǎng)CA到D使CA=AD,并計(jì)算CD的長(zhǎng)度.
2.一個(gè)角的補(bǔ)角加上60°的余角后,等于這個(gè)角的余角的5倍,求這個(gè)角的補(bǔ)角.
3、在一個(gè)長(zhǎng)、寬、高分別為2厘米,3厘米,4厘米的長(zhǎng)方體正中表面放一個(gè)邊長(zhǎng)為1厘米的正方體,則此組合圖形的表面積是多少?
4、∠ a與∠ b互補(bǔ),∠a 比∠b 大26°,求∠a 和∠b .
5、已知線(xiàn)段AB = 18 cm,M是AB中點(diǎn),C是AB上一點(diǎn),且AC = 5BC,求MC的長(zhǎng).
1.有一塊長(zhǎng)60厘米,寬20厘米,高5厘米的木快,按它的長(zhǎng)分成三段,求:這三段的表面積和.
2.已知一角的余角比它的2倍大15度,求這個(gè)角的補(bǔ)角.
3、某工廠(chǎng)加工一批零件,需200小時(shí)完成,工作了60小時(shí)后,由于技術(shù)革新,工作效率提高了25 %,還需要多少小時(shí)完成任務(wù).
4、某銀行把若干人民幣分成兩部份分別貸款給甲、乙兩個(gè)經(jīng)營(yíng)者,年利率分別為4%和5%,一年后銀行獲得兩部分利息共計(jì)4.4萬(wàn),如果把兩個(gè)利率交換可增加0.2萬(wàn)元,問(wèn)甲、乙兩人各貸款多少元?
5、某班學(xué)生春游分組活動(dòng)中,每組6人,則多出3人,若每組8人,則有一組少5人,問(wèn)該班學(xué)生共多少人,應(yīng)該分成幾組?
6.請(qǐng)根據(jù) 20分之x+18分之x+4=1 編寫(xiě)一道應(yīng)用題.
( )6.I’d like to _____ a teacher.
A.be B.do C.is D.are
( )7.Mr.Wang _____ work at 8:00a.m.every day.
A.start B.starts C.starting D.started
( )8.I want to be a policeman ______ I like to catch bad guys.
A.so B.because C.for D.as
( )9.--Do you like your job?--Yes,I _____.
A.do B.like C.likes D.did
( )10.My father likes his job and he usually makes sick people _______.
A.better B.well C.good D.best
( )11.She usually does some washing on _______.
A.the evening B.the morning C.Sundays D.night
( )12.Would you like to put _____ fires?
A.out B.on C.up D.down
( )13.The businessman goes into the bank _____ money.
A.to B.about C.of D.for
( )14.Sue is writing a diary _____ her trip to Suzhou.
A.of B.with C.to D.about
( )15.--How do you get to school?-- __________.
A.Take a bus B.In my bike C.On foot D.On the bus
( )1.It will take you half an hour ______ get there.
A.to B.on C.in D.off
( )2.Mum spends one hour ______ food every day.
A.to cook B.cook C.cooking D.cooked
( )3.The power station is ____ far away from our house.
A.quite B.to C.quiet D.very much
( )4.Jack ____ the train to visit his friends.
A.by B.get on C.take D.takes
( )5.I see _____ flowers when I walk around the park.
A.a B.any C.plenty of D.a little
( )6.It took us _____ than two hours to get to the stop.
A.more B.much C.quite D.many
( )7.There are always a lot of ____ in the park at weekends.
A.woman B.man C.people D.child
( )8.Can you find out how long your mother _______ doing housework?
A.spends B.pays C.takes D.costs
( )9.Would you please _____ me the way to the cinema?
A.told B.telling C.to tell D.tell
( )10.Are snacks good ______ bad for us?
A.to B.or C.and D.also
英語(yǔ)不要ABCD亂選~我要正確率,
1、畫(huà)線(xiàn)段AB=3厘米,延長(zhǎng)AB到C,使BC= AB,再延長(zhǎng)CA到D使CA=AD,并計(jì)算CD的長(zhǎng)度.
2.一個(gè)角的補(bǔ)角加上60°的余角后,等于這個(gè)角的余角的5倍,求這個(gè)角的補(bǔ)角.
3、在一個(gè)長(zhǎng)、寬、高分別為2厘米,3厘米,4厘米的長(zhǎng)方體正中表面放一個(gè)邊長(zhǎng)為1厘米的正方體,則此組合圖形的表面積是多少?
4、∠ a與∠ b互補(bǔ),∠a 比∠b 大26°,求∠a 和∠b .
5、已知線(xiàn)段AB = 18 cm,M是AB中點(diǎn),C是AB上一點(diǎn),且AC = 5BC,求MC的長(zhǎng).
英語(yǔ)人氣:863 ℃時(shí)間:2020-03-31 14:06:07
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