<< Chapter < Page
  Wiskunde graad 7   Page 1 / 1
Chapter >> Page >

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

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Wiskunde graad 7. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11076/1.2
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Wiskunde graad 7' conversation and receive update notifications?

Ask