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Mathematics

Percentages

Educator section

Memorandum

18.2

Cost price Selling price Loss / Profit % Loss / Profit
a) R623 24,92% profit
b) R80 28,57% loss
c) R9,99 27,75% profit
d) R19,14 R2,64
e) R765 R135
  • a) 14%
  1. Jobcreating, housing, etc.
  2. Milk, fresh fruit and veg. and meat

19.3 a) 41c

b) R2,66

c) R69,86

  1. R770

20. Pay VAT firstly, and then get discount.

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

Leaner section

Content

Activity: profit and lost [lo 1.4, lo 2.3.3]

18. PROFIT AND LOST

18.1 Important to know!

Profit = selling price – cost price

% profit = selling price – cost price
cost price
×
100
1
= profit
cost price
×
100
1

Loss = when you pay more for an item than what you sell it for

% loss = loss
cost price
×
100
1

18.2 Complete the table with help of your calculator.

Cost price Selling price Loss / Profit % Loss / Profit
Bv. R125 R160 R35 28% profit
a) R2 500 R3 123 ................. .........................
b) R280 R200 ................. .........................
c) R36 R45,99 ................. .........................
d) R16,50 ................. ................. 16% profit
e) R900 ................. ................. 15% loss

19.1 Did you know?

Value added tax (VAT) is an amount of money that is determined by the Minister of Finance. This forms part of the government’s budget. It is also called sales tax.

19.2 Find out

a) What % VAT are we currently paying? ……………………………………….

…………………………………………………………………………………………..

b) What does the government do with the money that comes in through VAT?

…………………………………………………………………………………………..

…………………………………………………………………………………………..

c) Which items are not taxed by VAT? …………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

19.3 Calculate the VAT at 14 % on the following amounts. You may use your calculator.

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

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

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

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

20. BRAIN-TEASER!

You buy an article for cash and get a 10 % discount. You also have to pay 14 % VAT. What is the most advantageous for you: to first pay the tax and then get the discount or vice versa?

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

21. Can you complete the following mental test within 3 minutes?

Fill in:<;>; = : Write as a decimal fraction:
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)

Assessment

Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.

Assessment Standard 1.4: We know this when the learner recognises and uses equivalent forms of the rational numbers listed above;

Learning Outcome 2: The learner will be able to recognise, describe and represent patterns and relationships, as well as to solve problems using algebraic language and skills.

Assessment Standard 2.3: We know this when the learner represents, explains and justifies observed relationships or rules in own words:

2.3.3 tables.

Questions & Answers

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differentiated between demand and supply using examples
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WARKISA
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multiple choice question
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explain perfect market
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Ezea
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other things being equal
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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)
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Shukri
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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
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ok
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Jabir
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sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
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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
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Answer
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c
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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
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Source:  OpenStax, Mathematics grade 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11075/1.1
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