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WELCOME TO THIS PAGE INTENDED FOR STUDENTS AT THE UNIVERSITY OF THE WESTERN CAPE REGISTERED  FOR THE MODULE QSF 131:

W5 L1

A. TESTS

B. GATEWAY TESTS

1.

A basic tax of R3000 is charged on an income of R30 000, plus R6.50 on every additional R200 income above R30 000. What does a person pay if he/she earns:

(a)    R40 000;

(b)    p rand where p is more than R30 000.

1. Gateway Test 2 : FRACTIONS

STATISTICAL:           Variance,               s² =

Determine  if , ,

and

C. LECTURE (CR pp. 80-83 : IMPORTANT!!!)

1. PATTERNS, CR pp. 80-81, 84 (E – DO THIS, IMPORTANT!!!)

RELEVANCE TO GRAPHS

 x 1 2 3 4 y 4 8 12 ……

EQUATION:

 x 1 2 3 4 5 y 5 7.5 …. …… 15

EQUATION:

 x 1 2 3 4 5 y 1 8 27 …… 125

EQUATION:

 x 1 2 3 4 5 y 1 ….. ……..

EQUATION:

VALUE OF PATTERNS IN THE BUSINESS WORLD

PREDICTIONS

·        FINANCE

·        PRICES: PROPERTY, etc.

·        CPIX

·        INFLATION

·        SHARES

1. INTEGERS, CR pp. 81-83

LARRY SOFFER on SABC on 3 Talk with Nolene - 19 February 2010 at 15:50 to 16:45

ON THURSDAY AFTERNOON, 17 FEB 2010, the MAGICIAN LARRY SOFFER STUNNED SABC 3 VIEWERS BY PERFORMING SEVERAL ‘MIRACLES’ OR MAGIC, IF YOU LIKE, BY BENDING A FORK, READING THE PRESENTER NOELENE MAHOLWANA-SANGQU’S  MIND, CARD READING, PREDICTING HEADLINES, AND SO ON.

HE COMMENCED HIS SHOW OF ‘MIRACLES’ BY MOVING THE HANDS ON THE WATCH OF ONE OF A SPECIALLY SELECTED GROUP OF SCEPTICS BACKWARDS BY TWELVE MINUTES.

RELEVANT QUANTITATIVE SKILLS PROBLEM:

IF THE TIME ON THE WATCH WAS ‘FIVE MINUTES PAST FOUR’ ORIGINALLY, AND THE TIME WAS THEN MOVED ‘TWELVE’ MINUTES BACKWARDS, WHAT WAS THE TIME ON THE WATCH AFTER THE ‘MIRACLE’?

(In QS we are not concerned with the crucial question: HOW ON EARTH DID HE DO IT?)

THUS: 5 – 12 =  -7, OR

FIVE PAST FOUR MINUS  TWELVE MINUTE

EQUALS SEVEN MINUTES TO FOUR

WE COULD REPHRASE THIS BY ASKING:

WHICH IS THE SAME AS:

SUBTRACT : ………………………….

·        RULES

PRACTICE WITH LARGE NUMBERS:

(a)        -11.42 + 9.54 – 6.34 + 9.34

(b)        -132.54  42.15

·        TABLE INTEGERS: NUMBERS & ALGEBRA

©  DESMOND DESAI, DMD EDU-HOME, 2010

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