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Wiskunde

Persentasies

Opvoeders afdeling

Memorandum

MODULETOETS 6

1. a) 5% b) 12%

  1. 73, 3 . size 12{ {3} cSup { size 8{ "." } } } {} %

2. a) 2 25 size 12{ { { size 8{2} } over { size 8{"25"} } } } {} b) 9 20 size 12{ { { size 8{9} } over { size 8{"20"} } } } {}

3. 0,5; 1 4 size 12{ { { size 8{1} } over { size 8{4} } } } {} ; 1 5 size 12{ { { size 8{1} } over { size 8{5} } } } {} ; 15%

4. a) R70

  1. R58,50

5. 42%

6. R297,50

7. R36,29 (afgerond)

8. 20%

9. AFSLAG X 100

MERKPRYS 1

Leerders afdeling

Inhoud

Aktiwiteit: navorsingstaak en moduletoets [lu 1.5, lu 2.6, lu 5.9]

25. ’n Groter uitdaging!

Doen die volgende as ’n aparte navorsingstaak op folio deur jou opvoeder voorsien (of gebruik jou eie papier). Onthou om mooi netjies te werk!

a) Jy gaan ’n winkel open. Besluit self watter soort.

b) Doen marknavorsing en verskaf ’n lys van items wat jy gaan aankoop vir jou winkel (kies net 5!)

Meld ’n realistiese kosprys by elke item.

c) Voeg nou 14% BTW by by elke item en lys dit in ’n tabel, bv.

Item Kosprys Met BTW

d) Besluit waarvoor jy elke item gaan verkoop. Gee ’n duidelike uiteensetting van jou kosprys en verkooppprys deur middel van ’n lyngrafiek.

(Wenk: gebruik verskillende kleure)

e) Bereken nou hoeveel % wins jy op elke item gaan maak, bv.

Item %Wins

f) Maak ’n advertensie om jou winkel bekend te stel.

g) Werk nou ’n maandelikse begroting uit vir jou winkel – hoeveel geld jy nodig het om alles glad te laat verloop en waarvoor.

(Wenk: dink aan die water en ligte, telefoon, werknemers, ens.)

1. Skryf die volgende as %:

a) 0,05 : ......................... b) 3 25 size 12{ { { size 8{3} } over { size 8{"25"} } } } {} : ......................... (2)

c) 11 15 size 12{ { { size 8{"11"} } over { size 8{"15"} } } } {} : ......................... (2)

2. Skryf as ’n gewone breuk en vereenvoudig:

a) 8% : ......................... b) 45% : .........................

......................... ......................... (4)

3. Rangskik van groot na klein:

1 5 size 12{ { { size 8{1} } over { size 8{5} } } } {} ; 15% ; 0,5 ; 1 4 size 12{ { { size 8{1} } over { size 8{4} } } } {}

(2)

4. Bereken:

a) 20% van R350

(2)

b) 12 1 2 size 12{ { { size 8{1} } over { size 8{2} } } } {} % van R468

(2)

5. Watter % is 840 g van 2 kg?

(4)

6. Ek kry 15% afslag op ’n paar skoene wat R350 gemerk is. Hoeveel moet ek vir die skoene betaal?

(4)

7. Die prys van kaas wat tans R32,99 ’n kg is, gaan binnekort met 10% verhoog word. Wat sal die nuwe prys van die kaas wees?

(4)

8. ’n Meubelhandelaar koop ’n sitkamerstel vir R12 000 en verkoop dit vir R15 000. Hoeveel % wins het hy gemaak?

(2)

9. Skryf die formule vir % afslag neer.

(2)

Assessering

Leeruitkomste 1: Die leerder is in staat om getalle en die verwantskappe daarvan te herken, te beskryf en voor te stel, en om tydens probleemoplossing bevoeg en met selfvertroue te tel, te skat, te bereken en te kontroleer.

Assesseringstandaard 1.5: Dit is duidelik wanneer die leerder probleme in konteks oplos, insluitend kontekste wat gebruik kan word om ‘n bewustheid van ander leerareas, asook van menseregte-, sosiale, ekeonomiese en omgewingsake, te bevorder;

Leeruitkomste 2: Die leerder is in staat om patrone en verwantskappe te herken, te beskryf en voor te stel en probleme op te los deur algebraïese taal en vaardighede te gebruik.

Assesseringstandaard 2.6: Dit is duidelik wanneer die leerder ‘n situasie beskryf deur ‘n grafiek daarvan te interpreteer, of ‘n grafiek van ‘n beskrywing van ‘n situasie teken (bv. die hoogte van ‘n wipwaentjie oor tyd; die spoed van ‘n resiesmotor wat om ‘n baan beweeg);

Leeruitkomste 5: Die leerder is in staat om data te versamel, op te som, voor te stel en krities te ontleed om gevolgtrekkings en voorspellings te maak en om toevallige variasie te interpreteer en te bepaal.

Assesseringstandaard 5.9: Dit is duidelik wanneer die leerder data wat op verskeie maniere voorgestel is krities lees en interpreteer ten einde gevolgtrekkings en voorspellings te maak.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Wiskunde graad 7. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11076/1.2
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