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Wiskunde

Nog meetkunde, datahantering en waarskynlikheid

Opvoeders afdeling

Memorandum

14.1 – 14.5 Kontroleer leerder se pogings

14.4 Fanta

14.5 R25,00

15.1 (a) half 9

(b) 1 uur 40 min

(c) 53 min

(d) half 7

(e) 55 min

(f) 18 ure

15.2 (a) 14 000 km

(b) 14,7 ure

(c) ongeveer 7 200 km

(d) 600 km/h

(e) ongeveer 49 en ‘n half

(f) 12 ure 47 min

(g) 08:05

(h) 07:05

(i) “Daylight saving” – gebruik soveel son moontlik

(j) VSA

Leerders afdeling

Inhoud

Aktiwiteit: eie voorstelling van data [lu 5.5, lu 5.8, lu 5.9, lu 4.1]

14. EIE VOORSTELLING VAN DATA:

14.1 Vusi, ’n leerder in gr. 7, was ernstig siek en moes in die hospitaal opgeneem word. Die verpleegster het gereeld sy koors geneem.

08:00 37,8°

10:00 38,2°

12:00 38,4°

14:00 37,6°

16:00 38°

18:00 39,2°

20:00 38,8°

  • Stel die inligting voor op ’n lyngrafiek .

14.2 In ’n sekere dorp word die water soos volg verbruik:

tuinmaak 32%

wasgoed en skottelgoed 15%

toilette 28%

bad 20%

koskook en drink 5%

  • Toon die gegewens aan deur middel van ’n sirkelgrafiek .

14.3 Tydens die leerderraadverkiesing van die Laerskool Sonskyn kry Stephanie 80 stemme; Tamara 120 stemme ; Buck 60 stemme en Sean 140 stemme.

  • Teken ’n piktogram/prentgrafiek om die stand van die stemme aan te toon.

14.4 Teken ’n staaf-/kolomgrafiek om die verkope van koeldrank vir die jaar aan te toon.

Fanta 38 000 liters

Coke 45 500 liters

Cream soda 20 500 liters

Tab 43 250 liters

  • Watter soort koeldrank lê die naaste aan die gemiddelde verkope?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

14.5 KOPKRAPPER!

  • Kan jy die volgende gegewens op diesefde grafiek aandui?

Jan Feb Mar Apr Mei

Jan Feb Mrt April Mei
Prys van Cheddar-kaas per kg R12.50 R15.00 R12.50 R17.50 R22.50
Prys van Soetmelkkaas per kg R17.50 R22.50 R12.50 R20.00 R25.00

(Wenk: trek ’n dubbele kolomgrafiek)

  • Hoekom, dink jy, varieer die pryse so van maand tot maand?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

  • Hoeveel meer sou jy in Februarie vir 5 kg Soetmelkkaas moes betaal as in Januarie?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

15. INTERPRETASIE VAN DATA

15.1 Kyk na die volgende TV rooster en beantwoord dan die vrae wat volg.

a) Hoe laat kan jy na die aërobiese oefeninge kyk? _____________________

b) Hoe lank duur die drama “Deep in my heart”? _________________________

c) Hoe lank duur die program “Once and again”? _________________________

d) Hoe laat kan jy Big Brother 2 kyk? ____________________________

e) Hoe lank moet jy wag ná “What women want” voordat jy na K-TV kan kyk? _______________________________________________________________

f) Hoe lank duur die hele uitsending dié dag? __________________

g) Hoeveel tyd spandeer JY gemiddeld per dag voor die TV? _____________

15.2 15.2 Bestudeer die wêreldkaart en die gegewe skaal om die volgende vrae te beantwoord:

a) Hoe ver is dit van Kaapstad na New York? ____________________________

b) As ’n vliegtuig teen 950 km/h vlieg, hoe lank gaan dit jou min of meer neem om van Kaapstad na New York te vlieg? ____________________________________

c) Hoe ver is dit van Perth na Los Angeles? _____________________________

d) Teen watter spoed reis jy as dit jou 12 uur neem om bogenoemde afstand af te lê? _________________________________________________________________

e) As jy kan stap teen 8 km/h van Tokio na Rio de Janeiro, ongeveer hoeveel dae sou dit jou neem om die afstand af te lê? __________________________

f) As jy om 20:18 uit Kaapstad vertrek en die volgende oggend om 09:05 (S.A.-tyd) in Londen arriveer, hoe lank het jou vlug geduur? _______________________

g) Hoe laat is dit dan in Engeland (Maart tot September)? _________________

h) Hoe laat is dit dan in Engeland (September tot Maart)?___________________

i) Waarom pas Engeland hul tyd so aan?________________________________

_______________________________________________________________

j) Waar in die wêreld word die tyd nog so aangepas? _____________________

Assessering

Leeruitkomste 4: Die leerder is in staat om gepaste meeteenhede, instrumente en formules in ‘n verskeidenheid kontekste te gebruik.

Assessment Standard 4.1: Dit is duidelik wanneer die leerder probleme oplos wat tyd, afstand en spoed behels;

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 5.5: Dit is duidelik wanneer die leerder data organiseer (en groepeer ook, waar gepas) en aanteken deur tellings, tabelle en stam-en-blaar-voorstellings te gebruik;

Assesseringstandaard 5.8: Dit is duidelik wanneer die leerder ‘n verskeidenheid grafieke met die hand of met behulp van tegnologie teken om data voor te stel en te interpreteer (gegroepeer en ongegroepeer);

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 wat sensitief is.

Questions & Answers

differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
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Venny Reply
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Rezat Reply
information
Eliyee
devaluation
Eliyee
t
WARKISA
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Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
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Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
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Shukri
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Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
any question about economics?
Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
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Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
Gsbwnw Reply
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
Abdureman
types of unemployment
Yomi Reply
What is the difference between perfect competition and monopolistic competition?
Mohammed
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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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