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Wiskunde

Persentasies

Opvoeders afdeling

Memorandum

18.2

KOSPRYS VERKOOPPRYS VERLIES/WINS % WINS/VERLIES
a) R623 24,92% wins
b) R80 28,57% verlies
c) R9,99 27,75% wins
d) R19,14 R2,64
e) R765 R135
  • a) 14%
  1. Werkvoorsiening; welsyns- en maatskaplike uitgawes; behuising; ens.
  2. Melk; vars groente; vars vrugte; vleis

19.3 a) 41c

b) R2,66

c) R69,86

  1. R770

20. Betaal eers BTW, dan afslag.

21.

a)>

b)<

c) =

d)<

e) =

f) =

g)>

h)>

i) 0,55

j) 0,125

k) 1,42

l) 0,03

m) 0,45

n) 0,075

o) 0,625

Leerders afdeling

Inhoud

Aktiwiteit: wins en verlies [lu 1.4, lu 2.3.3]

18. WINS EN VERLIES

18.1 Belangrik om te weet!

Wins = verkoopprys – kosprys

% wins = verkoopprys – kosprys
kosprys
×
100
1
= wins
kosprys
×
100
1

Verlies = wanneer jy meer vir ’n item betaal as waarvoor jydit verkoop

% verlies = verlies
kosprys
×
100
1

18.2 Voltooi die tabel met behulp van jou sakrekenaar.

Kosprys Verkoopprys Verlies / Wins % Wins / Verlies
Bv. R125 R160 R35 28% wins
a) R2 500 R3 123 ................. .........................
b) R280 R200 ................. .........................
c) R36 R45,99 ................. .........................
d) R16,50 ................. ................. 16% wins
e) R900 ................. ................. 15% verlies

19.1 Het jy geweet?

Belasting op toegevoegde waarde (BTW) is ’n bedrag geld wat deur die Minister van Finansies vasgestel word as deel van die regering se begroting. Dit word ook soms “verkoopbelasting” genoem.

19.2 Vind uit

a) Hoeveel % BTW moet ons tans betaal? ………………………………………..

…………………………………………………………………………………………..

b) Waarvoor gebruik die regering die geld wat hulle met BTW in?

…………………………………………………………………………………………..

…………………………………………………………………………………………..

c) Watter items is vrygestel van BTW? …………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

19.3 Bereken die BTW op die volgende teen 14% met behulp van jou sakrekenaar.

a) R2,95 : ………………………………………………………………………….

b) R18,99 : ………………………………………………………………………...

c) R499 : …………………………………………………………………………..

d) R 5 500 : ………………………………………………………………………..

20. KOPKRAPPER!

Jy koop ’n artikel kontant en kry 10% afslag, maar moet 14% BTW betaal. Wat is die voordeligste vir jou: om eers belasting te betaal en dan die afslag te kry, of andersom?

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

21. Kan jy die volgende hoofrekentoets binne 3 minute voltooi?

Vul in:<;>; = : Skryf as desimale breuk:
a) 0,8 ........... 8% i) 55% : ....................
b) 3 4 size 12{ { { size 8{3} } over { size 8{4} } } } {} ............ 76% j) 1 8 size 12{ { { size 8{1} } over { size 8{8} } } } {} : ....................
c) 60% ........... 0,6 k) 142% : ....................
d) 4 5 size 12{ { { size 8{4} } over { size 8{5} } } } {} ............ 85% l) 3% : ....................
e) 0,835 ........... 83,5% m) 9 20 size 12{ { { size 8{9} } over { size 8{"20"} } } } {} : ....................
f) 0,02 ........... 2% n) 7 1 2 size 12{7 { { size 8{1} } over { size 8{2} } } } {} % : ....................
g) 1 3 size 12{ { { size 8{1} } over { size 8{3} } } } {} ............ 33% o) 62 1 2 size 12{"62" { { size 8{1} } over { size 8{2} } } } {} % : ....................
h) 12,5% ............ 1 8 size 12{ { { size 8{1} } over { size 8{8} } } } {}

(15)

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 1.4: Dit is duidelik wanneer die leerder ekwivalente vorms van rasionale getalle herken en gebruik;

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 2.3: Dit is duidelik wanneer die leerder voorstellings maak van en verwantskappe tussen veranderlikes gebruik sodat inset- en/of uitsetwaardes op ‘n verskeidenheid maniere bepaal kan word deur die gebruik van:

2.3.3 tabelle.

Questions & Answers

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Hajah Reply
the study of living organisms and their interactions with one another and their environments
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Victoria Reply
HOW CAN MAN ORGAN FUNCTION
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the diagram of the digestive system
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Ogenrwot
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They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
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Genetics is the study of heredity
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Joseph Reply
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Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
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Shaker Reply
list any five characteristics of the blood cells
Shaker
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Abdullahi Reply
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cells is the basic structure and functions of all living things
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ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
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cell is the building block of life.
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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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