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28 tháng 2 2022

TL

I'm ten years old

nha bn

HT

28 tháng 2 2022

I'm eleven years old

28 tháng 2 2022

giúp đi 

28 tháng 2 2022

MỞ youtube mà xem

trên đó đày mà

lần sau bn ko nhắn linh tinh nhé

HT

28 tháng 2 2022

154 ht

28 tháng 2 2022

TL:

\(Y\times9=2772:2\)

\(Y\times9=1386\)

\(Y=1386:9\)

\(Y=154\)

_HT_

28 tháng 2 2022

hoa sen ướp trè nha bn

28 tháng 2 2022
hoa sen nha bạn
28 tháng 2 2022

TL

1753x(482:2-237)

=1753x(241-237)

=1753x4

=7012

nha bn

HT

28 tháng 2 2022

bằng 7012 nha

Gọi tuổi cháu là a.

Theo bài ra ta có

Tuổi ông là:

5a

Tuổi cháu khi gấp đôi là: 2a(1)

Tuổi ông sau khi tuổi cháu gấp đôi là: 5a+a=6a(2)

Từ (1) và (2) ta đc: tuổi cháu tỉ lệ vs tuổi ông: \(\frac{2a}{6a}=\frac{1}{3}\)

=> tuổi ông gấp 3 lần tuổi cháu lúc sau

DD
28 tháng 2 2022

Nếu tuổi cháu hiện tại là \(1\)phần thì tuổi ông hiện tại là \(5\)phần.

Hiệu số phần bằng nhau là: 

\(5-1=4\)(phần) 

Tuổi cháu sau khi tăng lên gấp đôi là: 

\(1+1=2\)(phần) 

Tuổi ông khi đó là: 

\(2+4=6\)(phần) 

Khi đó tuổi ông gấp số lần tuổi cháu là: 

\(6\div2=3\)(lần) 

28 tháng 2 2022

Trong một ngày trại gà thu được số trứng là :

3150÷3=1050 (quả)

Trong tám ngày trại thu được số trứng là :

1050×8=8400 (quả)

Đáp số : 8400 quả

HT

@@@@@

28 tháng 2 2022

mỗi ngày đẻ số trứng là

3150:3=1050 quả 

8 ngày đẻ số trứng là

1050 nhân 8400 quả

Đ/S:8400 quả

28 tháng 2 2022

a) 8/5

b) 7/2

c) 11/4

28 tháng 2 2022

TL

a)12/25+3/5+13/25=12/25+13/25+3/4=3/5+1=8/5

b)3/2+2/3+4/3=3/2+2=7/2

c)3/5+7/5+3/4=2+3/4=11/4

nha bn

HT

28 tháng 2 2022

Dưới đây là bảng chữ số La Mã từ 1 tới 1000 mời các bạn tham khảo:

1I26XXVI51LI76LXXVI
2II27XXVII52LII77LXXVII
3III28XXVIII53LIII78LXXVIII
4IV29XXIX54LIV79LXXIX
5V30XXX55LV80LXXX
6VI31XXXI56LVI81LXXXI
7VII32XXXII57LVII82LXXXII
8VIII33XXXIII58LVIII83LXXXIII
9IX34XXXIV59LIX84LXXXIV
10X35XXXV60LX85LXXXV
11XI36XXXVI61LXI86LXXXVI
12XII37XXXVII62LXII87LXXXVII
13XIII38XXXVIII63LXIII88LXXXVIII
14XIV39XXXIX64LXIV89LXXXIX
15XV40XL65LXV90XC
16XVI41XLI66LXVI91XCI
17XVII42XLII67LXVII92XCII
18XVIII43XLIII68LXVIII93XCIII
19XIX44XLIV69LXIX94XCIV
20XX45XLV70LXX95XCV
21XXI46XLVI71LXXI96XCVI
22XXII47XLVII72LXXII97XCVII
23XXIII48XLVIII73LXXIII98XCVIII
24XXIV49XLIX74LXXIV99XCIX
25XXV50L75LXXV100C
101CI126CXXVI151CLI176CLXXVI
102CII127CXXVII152CLII177CLXXVII
103CIII128CXXVIII153CLIII178CLXXVIII
104CIV129CXXIX154CLIV179CLXXIX
105CV130CXXX155CLV180CLXXX
106CVI131CXXXI156CLVI181CLXXXI
107CVII132CXXXII157CLVII182CLXXXII
108CVIII133CXXXIII158CLVIII183CLXXXIII
109CIX134CXXXIV159CLIX184CLXXXIV
110CX135CXXXV160CLX185CLXXXV
111CXI136CXXXVI161CLXI186CLXXXVI
112CXII137CXXXVII162CLXII187CLXXXVII
113CXIII138CXXXVIII163CLXIII188CLXXXVIII
114CXIV139CXXXIX164CLXIV189CLXXXIX
115CXV140CXL165CLXV190CXC
116CXVI141CXLI166CLXVI191CXCI
117CXVII142CXLII167CLXVII192CXCII
118CXVIII143CXLIII168CLXVIII193CXCIII
119CXIX144CXLIV169CLXIX194CXCIV
120CXX145CXLV170CLXX195CXCV
121CXXI146CXLVI171CLXXI196CXCVI
122CXXII147CXLVII172CLXXII197CXCVII
123CXXIII148CXLVIII173CLXXIII198CXCVIII
124CXXIV149CXLIX174CLXXIV199CXCIX
125CXXV150CL175CLXXV200CC
201CCI226CCXXVI251CCLI276CCLXXVI
202CCII227CCXXVII252CCLII277CCLXXVII
203CCIII228CCXXVIII253CCLIII278CCLXXVIII
204CCIV229CCXXIX254CCLIV279CCLXXIX
205CCV230CCXXX255CCLV280CCLXXX
206CCVI231CCXXXI256CCLVI281CCLXXXI
207CCVII232CCXXXII257CCLVII282CCLXXXII
208CCVIII233CCXXXIII258CCLVIII283CCLXXXIII
209CCIX234CCXXXIV259CCLIX284CCLXXXIV
210CCX235CCXXXV260CCLX285CCLXXXV
211CCXI236CCXXXVI261CCLXI286CCLXXXVI
212CCXII237CCXXXVII262CCLXII287CCLXXXVII
213CCXIII238CCXXXVIII263CCLXIII288CCLXXXVIII
214CCXIV239CCXXXIX264CCLXIV289CCLXXXIX
215CCXV240CCXL265CCLXV290CCXC
216CCXVI241CCXLI266CCLXVI291CCXCI
217CCXVII242CCXLII267CCLXVII292CCXCII
218CCXVIII243CCXLIII268CCLXVIII293CCXCIII
219CCXIX244CCXLIV269CCLXIX294CCXCIV
220CCXX245CCXLV270CCLXX295CCXCV
221CCXXI246CCXLVI271CCLXXI296CCXCVI
222CCXXII247CCXLVII272CCLXXII297CCXCVII
223CCXXIII248CCXLVIII273CCLXXIII298CCXCVIII
224CCXXIV249CCXLIX274CCLXXIV299CCXCIX
225CCXXV250CCL275CCLXXV300CCC
301CCCI326CCCXXVI351CCCLI376CCCLXXVI
302CCCII327CCCXXVII352CCCLII377CCCLXXVII
303CCCIII328CCCXXVIII353CCCLIII378CCCLXXVIII
304CCCIV329CCCXXIX354CCCLIV379CCCLXXIX
305CCCV330CCCXXX355CCCLV380CCCLXXX
306CCCVI331CCCXXXI356CCCLVI381CCCLXXXI
307CCCVII332CCCXXXII357CCCLVII382CCCLXXXII
308CCCVIII333CCCXXXIII358CCCLVIII383CCCLXXXIII
309CCCIX334CCCXXXIV359CCCLIX384CCCLXXXIV
310CCCX335CCCXXXV360CCCLX385CCCLXXXV
311CCCXI336CCCXXXVI361CCCLXI386CCCLXXXVI
312CCCXII337CCCXXXVII362CCCLXII387CCCLXXXVII
313CCCXIII338CCCXXXVIII363CCCLXIII388CCCLXXXVIII
314CCCXIV339CCCXXXIX364CCCLXIV389CCCLXXXIX
315CCCXV340CCCXL365CCCLXV390CCCXC
316CCCXVI341CCCXLI366CCCLXVI391CCCXCI
317CCCXVII342CCCXLII367CCCLXVII392CCCXCII
318CCCXVIII343CCCXLIII368CCCLXVIII393CCCXCIII
319CCCXIX344CCCXLIV369CCCLXIX394CCCXCIV
320CCCXX345CCCXLV370CCCLXX395CCCXCV
321CCCXXI346CCCXLVI371CCCLXXI396CCCXCVI
322CCCXXII347CCCXLVII372CCCLXXII397CCCXCVII
323CCCXXIII348CCCXLVIII373CCCLXXIII398CCCXCVIII
324CCCXXIV349CCCXLIX374CCCLXXIV399CCCXCIX
325CCCXXV350CCCL375CCCLXXV400CD
401CDI426CDXXVI451CDLI476CDLXXVI
402CDII427CDXXVII452CDLII477CDLXXVII
403CDIII428CDXXVIII453CDLIII478CDLXXVIII
404CDIV429CDXXIX454CDLIV479CDLXXIX
405CDV430CDXXX455CDLV480CDLXXX
406CDVI431CDXXXI456CDLVI481CDLXXXI
407CDVII432CDXXXII457CDLVII482CDLXXXII
408CDVIII433CDXXXIII458CDLVIII483CDLXXXIII
409CDIX434CDXXXIV459CDLIX484CDLXXXIV
410CDX435CDXXXV460CDLX485CDLXXXV
411CDXI436CDXXXVI461CDLXI486CDLXXXVI
412CDXII437CDXXXVII462CDLXII487CDLXXXVII
413CDXIII438CDXXXVIII463CDLXIII488CDLXXXVIII
414CDXIV439CDXXXIX464CDLXIV489CDLXXXIX
415CDXV440CDXL465CDLXV490CDXC
416CDXVI441CDXLI466CDLXVI491CDXCI
417CDXVII442CDXLII467CDLXVII492CDXCII
418CDXVIII443CDXLIII468CDLXVIII493CDXCIII
419CDXIX444CDXLIV469CDLXIX494CDXCIV
420CDXX445CDXLV470CDLXX495CDXCV
421CDXXI446CDXLVI471CDLXXI496CDXCVI
422CDXXII447CDXLVII472CDLXXII497CDXCVII
423CDXXIII448CDXLVIII473CDLXXIII498CDXCVIII
424CDXXIV449CDXLIX474CDLXXIV499CDXCIX
425CDXXV450CDL475CDLXXV500D
501DI526DXXVI551DLI576DLXXVI
502DII527DXXVII552DLII577DLXXVII
503DIII528DXXVIII553DLIII578DLXXVIII
504DIV529DXXIX554DLIV579DLXXIX
505DV530DXXX555DLV580DLXXX
506DVI531DXXXI556DLVI581DLXXXI
507DVII532DXXXII557DLVII582DLXXXII
508DVIII533DXXXIII558DLVIII583DLXXXIII
509DIX534DXXXIV559DLIX584DLXXXIV
510DX535DXXXV560DLX585DLXXXV
511DXI536DXXXVI561DLXI586DLXXXVI
512DXII537DXXXVII562DLXII587DLXXXVII
513DXIII538DXXXVIII563DLXIII588DLXXXVIII
514DXIV539DXXXIX564DLXIV589DLXXXIX
515DXV540DXL565DLXV590DXC
516DXVI541DXLI566DLXVI591DXCI
517DXVII542DXLII567DLXVII592DXCII
518DXVIII543DXLIII568DLXVIII593DXCIII
519DXIX544DXLIV569DLXIX594DXCIV
520DXX545DXLV570DLXX595DXCV
521DXXI546DXLVI571DLXXI596DXCVI
522DXXII547DXLVII572DLXXII597DXCVII
523DXXIII548DXLVIII573DLXXIII598DXCVIII
524DXXIV549DXLIX574DLXXIV599DXCIX
525DXXV550DL575DLXXV600DC
601DCI626DCXXVI651DCLI676DCLXXVI
602DCII627DCXXVII652DCLII677DCLXXVII
603DCIII628DCXXVIII653DCLIII678DCLXXVIII
604DCIV629DCXXIX654DCLIV679DCLXXIX
605DCV630DCXXX655DCLV680DCLXXX
606DCVI631DCXXXI656DCLVI681DCLXXXI
607DCVII632DCXXXII657DCLVII682DCLXXXII
608DCVIII633DCXXXIII658DCLVIII683DCLXXXIII
609DCIX634DCXXXIV659DCLIX684DCLXXXIV
610DCX635DCXXXV660DCLX685DCLXXXV
611DCXI636DCXXXVI661DCLXI686DCLXXXVI
612DCXII637DCXXXVII662DCLXII687DCLXXXVII
613DCXIII638DCXXXVIII663DCLXIII688DCLXXXVIII
614DCXIV639DCXXXIX664DCLXIV689DCLXXXIX
615DCXV640DCXL665DCLXV690DCXC
616DCXVI641DCXLI666DCLXVI691DCXCI
617DCXVII642DCXLII667DCLXVII692DCXCII
618DCXVIII643DCXLIII668DCLXVIII693DCXCIII
619DCXIX644DCXLIV669DCLXIX694DCXCIV
620DCXX645DCXLV670DCLXX695DCXCV
621DCXXI646DCXLVI671DCLXXI696DCXCVI
622DCXXII647DCXLVII672DCLXXII697DCXCVII
623DCXXIII648DCXLVIII673DCLXXIII698DCXCVIII
624DCXXIV649DCXLIX674DCLXXIV699DCXCIX
625DCXXV650DCL675DCLXXV700DCC
701DCCI726DCCXXVI751DCCLI776DCCLXXVI
702DCCII727DCCXXVII752DCCLII777DCCLXXVII
703DCCIII728DCCXXVIII753DCCLIII778DCCLXXVIII
704DCCIV729DCCXXIX754DCCLIV779DCCLXXIX
705DCCV730DCCXXX755DCCLV780DCCLXXX
706DCCVI731DCCXXXI756DCCLVI781DCCLXXXI
707DCCVII732DCCXXXII757DCCLVII782DCCLXXXII
708DCCVIII733DCCXXXIII758DCCLVIII783DCCLXXXIII
709DCCIX734DCCXXXIV759DCCLIX784DCCLXXXIV
710DCCX735DCCXXXV760DCCLX785DCCLXXXV
711DCCXI736DCCXXXVI761DCCLXI786DCCLXXXVI
712DCCXII737DCCXXXVII762DCCLXII787DCCLXXXVII
713DCCXIII738DCCXXXVIII763DCCLXIII788DCCLXXXVIII
714DCCXIV739DCCXXXIX764DCCLXIV789DCCLXXXIX
715DCCXV740DCCXL765DCCLXV790DCCXC
716DCCXVI741DCCXLI766DCCLXVI791DCCXCI
717DCCXVII742DCCXLII767DCCLXVII792DCCXCII
718DCCXVIII743DCCXLIII768DCCLXVIII793DCCXCIII
719DCCXIX744DCCXLIV769DCCLXIX794DCCXCIV
720DCCXX745DCCXLV770DCCLXX795DCCXCV
721DCCXXI746DCCXLVI771DCCLXXI796DCCXCVI
722DCCXXII747DCCXLVII772DCCLXXII797DCCXCVII
723DCCXXIII748DCCXLVIII773DCCLXXIII798DCCXCVIII
724DCCXXIV749DCCXLIX774DCCLXXIV799DCCXCIX
725DCCXXV750DCCL775DCCLXXV800DCCC
801DCCCI826DCCCXXVI851DCCCLI876DCCCLXXVI
802DCCCII827DCCCXXVII852DCCCLII877DCCCLXXVII
803DCCCIII828DCCCXXVIII853DCCCLIII878DCCCLXXVIII
804DCCCIV829DCCCXXIX854DCCCLIV879DCCCLXXIX
805DCCCV830DCCCXXX855DCCCLV880DCCCLXXX
806DCCCVI831DCCCXXXI856DCCCLVI881DCCCLXXXI
807DCCCVII832DCCCXXXII857DCCCLVII882DCCCLXXXII
808DCCCVIII833DCCCXXXIII858DCCCLVIII883DCCCLXXXIII
809DCCCIX834DCCCXXXIV859DCCCLIX884DCCCLXXXIV
810DCCCX835DCCCXXXV860DCCCLX885DCCCLXXXV
811DCCCXI836DCCCXXXVI861DCCCLXI886DCCCLXXXVI
812DCCCXII837DCCCXXXVII862DCCCLXII887DCCCLXXXVII
813DCCCXIII838DCCCXXXVIII863DCCCLXIII888DCCCLXXXVIII
814DCCCXIV839DCCCXXXIX864DCCCLXIV889DCCCLXXXIX
815DCCCXV840DCCCXL865DCCCLXV890DCCCXC
816DCCCXVI841DCCCXLI866DCCCLXVI891DCCCXCI
817DCCCXVII842DCCCXLII867DCCCLXVII892DCCCXCII
818DCCCXVIII843DCCCXLIII868DCCCLXVIII893DCCCXCIII
819DCCCXIX844DCCCXLIV869DCCCLXIX894DCCCXCIV
820DCCCXX845DCCCXLV870DCCCLXX895DCCCXCV
821DCCCXXI846DCCCXLVI871DCCCLXXI896DCCCXCVI
822DCCCXXII847DCCCXLVII872DCCCLXXII897DCCCXCVII
823DCCCXXIII848DCCCXLVIII873DCCCLXXIII898DCCCXCVIII
824DCCCXXIV849DCCCXLIX874DCCCLXXIV899DCCCXCIX
825DCCCXXV850DCCCL875DCCCLXXV900CM
901CMI926CMXXVI951CMLI976CMLXXVI
902CMII927CMXXVII952CMLII977CMLXXVII
903CMIII928CMXXVIII953CMLIII978CMLXXVIII
904CMIV929CMXXIX954CMLIV979CMLXXIX
905CMV930CMXXX955CMLV980CMLXXX
906CMVI931CMXXXI956CMLVI981CMLXXXI
907CMVII932CMXXXII957CMLVII982CMLXXXII
908CMVIII933CMXXXIII958CMLVIII983CMLXXXIII
909CMIX934CMXXXIV959CMLIX984CMLXXXIV
910CMX935CMXXXV960CMLX985CMLXXXV
911CMXI936CMXXXVI961CMLXI986CMLXXXVI
912CMXII937CMXXXVII962CMLXII987CMLXXXVII
913CMXIII938CMXXXVIII963CMLXIII988CMLXXXVIII
914CMXIV939CMXXXIX964CMLXIV989CMLXXXIX
915CMXV940CMXL965CMLXV990CMXC
916CMXVI941CMXLI966CMLXVI991CMXCI
917CMXVII942CMXLII967CMLXVII992CMXCII
918CMXVIII943CMXLIII968CMLXVIII993CMXCIII
919CMXIX944CMXLIV969CMLXIX994CMXCIV
920CMXX945CMXLV970CMLXX995CMXCV
921CMXXI946CMXLVI971CMLXXI996CMXCVI
922CMXXII947CMXLVII972CMLXXII997CMXCVII
923CMXXIII948CMXLVIII973CMLXXIII998CMXCVIII
924CMXXIV949CMXLIX974CMLXXIV999CMXCIX
925CMXXV950CML975CMLXXV1000M
28 tháng 2 2022

Số La Mã có 7 chữ số cơ bản

Ký tự

I

V

X

L

C

D

M

Giá trị

1 (một)

5 (năm)

10 (mười)

50 (năm mươi)

100 (một trăm)

500 (năm trăm)

1000 (một nghìn)

28 tháng 2 2022

Độ dài đoạn dây đó là :

    \(5\times4=20\left(cm\right)\)

        Đáp số: \(20cm\)

_HT_

28 tháng 2 2022

Do hình vuông có 4 cạnh bằng nhau, để uốn một đoạn dây thép thành 1 hình vuông ta cần một đoạn dây thép độ dài gấp 4 lần cạnh hình vuông.

Độ dài đoạn dây đó là:

     5×4=20 (cm)

                  Đáp số: 20 cm