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Ekonomiese en bestuurswetenskappe

Graad 7

Ekonomiese beginsels

Module 2

Vraag en aanbod

D.wat beteken vraag en aanbod?

Voordat motors hul verskyning op die land se paaie gemaak het, het mense te perd gereis.

Veronderstel mense besluit dat hulle eerder met motors as met perde wil ry. Wat gebeur nou in die praktyk?

  • Besluit die regering dat daar fabrieke wat motors vervaardig, in Uitenhage gebou moet word en dat werkers soontoe moet trek om in die fabrieke te werk?
  • Word die perdetelers aangesê om minder perde te teel?
  • Besluit die regering dat daar nou eerder katoen gekweek moet word waarmee die sitplekke van die motors opgestop word, en dat daar minder hooi vir perdevoer gekweek moet word?

Natuurlik het die regering niks van die aard gedoen nie. Die verbruikers het meer motors en minder perde gekoop. Wat gebeur nou?

  • Met hoër winste in die motorbedryf, ontstaan daar meer fabrieke wat motors bou, en arbeiders op soek na werksgeleenthede, verhuis soontoe.
  • Die prys van perde daal, en perdetelers wend hulle tot ander maniere om geld te maak.
  • Minder hooi word vir perdevoer benodig, gevolglik daal die prys van hooi en ander gewasse moet aangeplant word.
  • Terselfdertyd neem die aanvraag na grondstowwe soos staal, katoen en rubber toe vir die vervaardiging van motoronderdele. Die prys van hierdie kommoditeite styg en dit het tot gevolg dat meer ondernemings tot die vervaardigingsbedryf toetree.
  • Uiteindelik het die aanvraag na perde in die vorige eeu met 90% afgeneem terwyl miljoene motors vervaardig is.
  • Wat het hierdie rewolusie teweeg gebring? Dit het plaasgevind namate ‘n verandering in smaak en tegnologie deur die kragte van vraag en aanbod plaasgevind het.
  • Soortgelyke veranderings vind deurentyd op ekonomiese gebied plaas namate die smaak van mense verander en produksiemetodes ontwikkel.
  1. “Vrye” en “Ekonomiese” goedere

Vrye goedere

Wanneer daar so baie van iets bestaan soos bv. seewate r en lug, kan ons soveel daarvan gebruik as wat ons wil sonder om daarvoor te betaal. Met ander woorde dit is gratis beskikbaar aan almal.

Ekonomiese goedere

Wanneer iets skaars is en die aanvraag daarvoor groot is, moet ons daarvoor betaal. Sulke goed is nie altyd volop nie, en hoe minder daarvan beskikbaar is, hoe meer moet ons daarvoor betaal.

As alles wat ons wil hê, volop is, en die pryse daarvan laag is, sal almal ‘n welvarende lewe lei, en sal niemand bekommerd wees oor die verspreiding van inkomste tussen mense nie. Almal sal kan hê soveel as wat hulle wil. In so ‘n samelewing van welvaart sal daar nie ekonomiese goedere wees nie.

Aktiwiteit 1:

Om onderskeid te tref tussen behoeftes en begeertes

[lu 1.1]

  • Wat is die verskil tussen behoeftes en begeertes ? Bespreek.
  • Skryf die volgende items neer in die gepaste kolom:

CD’s, fiets, ski-vakansie, swembad, iPod, mediese dienste, selfoon, broodmeel, skoon lug, suiwer water, steenkool, petrol, rekenaarspeletjies

Behoeftes Begeertes

Veels te veel platskerm-televisies

Skielik is daar ‘n oorskot aan supergevorderde platskerm lcd-televisies. Of liewer, daar is veel meer op die winkelrakke as wat verbruikers wil koop. Wêreldmarkleiers Samsung en LG Philips het die vraag na plat beeldskerms hewig oorskat toe hulle die afgelope paar jaar tientalle miljarde rande in nuwe fabrieke belê het.

Questions & Answers

what is math number
Tric Reply
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
Need help solving this problem (2/7)^-2
Simone Reply
x+2y-z=7
Sidiki
what is the coefficient of -4×
Mehri Reply
-1
Shedrak
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
Akash
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
Carole
I'm 13 and I understand it great
AJ
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Atone
hi
Adu
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
Vedant
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
If f(x) = x-2 then, f(3) when 5f(x+1) 5((3-2)+1) 5(1+1) 5(2) 10
Augustine
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
AJ
how
Sheref
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
I rally confuse this number And equations too I need exactly help
salma
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
hi
Ayuba
Hello
opoku
hi
Ali
greetings from Iran
Ali
salut. from Algeria
Bach
hi
Nharnhar
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
Shanjida
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Ekonomiese en bestuurswetenskappe graad 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11024/1.1
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