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5. Skryf elk van die volgende as algebraïese vergelykings en los op.

5.1 Nege keer ’n sekere getal is 28 meer as vyf keer die getal. Wat is die getal?


5.2 ’n Reghoek, waarvan die omtrek 108 cm is, se lengte is vier meer as die breedte. Bereken:

5.2.1 die lengte en breedte


5.2.2 die oppervlakte van die reghoek


6. Die som van vier opeenvolgende onewe getalle is 112.Bepaal die vier getalle.


7. ’n Boek word oopgemaak, en die produk van die bladsynommer van die linkerblad en die van die regterblad, word bepaal. Die produk is 6 162.Wat is die linkerblad se nommer?


Assessering van myself: deur myself: Assessering deur opvoeder:
Ek kan… 1 2 3 4 Kritieke Uitkomste 1 2 3 4
’n vergelyking definieer; (Lu 1.2.1 ; 1.2.2); Kritiese en skeppende denke
eenvoudige vergelykings oplos d.m.v. inspeksie; (Lu 1.8 ; 2.5); Deelname
enige vergelyking oplos al is hakies teenwoordig; (Lu 1.8 ; 2.5); Organisering en bestuur
woordprobleme as vergelykings skryf en dit dan oplos; (Lu 1.8 ; 2.5; 2.8.6); Prosessering van inligting
ingewikkelde woordprobleme oplos. (Lu 1.8 ; 2.5 ; 2.8.6). Kommunikasie

goed gedeeltelik nie goed nie

Kommentaar deur die leerder: My plan van aksie: My punte:
Ek is besonder tevrede met die standaard van my werk. < Datum :
Ek is tevrede met die vordering van my werk. Uit:
Ek het hard gewerk, maar is nie tevrede met my prestasie nie. Leerder :
Ek het nie my beste gelewer nie. >
Kommentaar deur ouers: Kommentaar deur opvoeder:
Handtekening: Datum : Handtekening: Datum :

Toets: (Vergelykings)

Totaal: 45

1. Los op vir x :

1.1 x + 5 = 39 [2]

1.2 7 - 3 x = 1 [2]

1.3 2( x + 5) = 18 [3]

1.4 8 = 40 - 2 x [2]

1.5 2( x - 3) - ( x + 1) = 5 x - 4 [4]

1.6 3 x + 6 = 15 [2]

1.7 x 2 size 12{ { {x} over {2} } } {} = 4 [2]

1.8 2(3 x + 24) = 114 [3]

1.9 10 x + 9 = 7 x + 30 [3]

1.10 1 / 3 (3 x - 6) - 2( x + 1½) = 7 [4]


2. Los die volgende woordprobleme op:

2.1 As 5 van ’n sekere getal afgetrek word en die antwoord word deur 3 gedeel, is die antwoord 4. Bereken die getal.


2.2 Die som van drie opeenvolgende ewe getalle is 66. Bereken die drie getalle.


2.3 Die lengte van ’n reghoek is 5,5 cm langer as die breedte. As die omtrek van die reghoek 27 cm is, bereken die breedte.


2.4 Jonte se ouderdom is vyf keer die van sy dogter. As die som van hul ouderdomme 60 jaar is, hoe oud is die dogter?


2.5 Gareth is 5 keer so oud soos sy seun. Oor 5 jaar sal hy 3 keer so oud wees soos sy seun. Hoe oud is die seun nou?


3. Bonuspuntvraag

Gegee: 1 / 2 a + 2 a = 7

Bepaal die waarde van 1 4a 2 + 4a 2 size 12{ { {1} over {4a rSup { size 8{2} } } } `+`4a rSup { size 8{2} } } {}


Verrykingsoefening vir die vinnige werker

1. As die produk 2 12 x 5 8 ontwikkel word, hoeveel syfers sal daar in die antwoord wees?

2. 6² = 36. Hoeveel ander positiewe enkelsyfer getalle se kwadraat eindig in dieselfde syfer as die getal wat jy gekwadreer het?

3. Indien die driesyfer getal 2A3 by 326 getel word, gee dit 5T9. Indien 5T9 deelbaar is deur 9, dan is A + T gelyk aan ....

4. Indien ’n viersyfer getal wat met 34 begin, afgetrek word van ’n viersyfer getal wat met 199 begin, dan is die grootste moontlike antwoord ...

5. As jy 1,2,3,6 in elke moontlike volgorde skryf om 4-syfers getalle te vorm, hoeveel van hulle is deelbaar deur 4?

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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