TUTORIAL LETTER INTRODUCNON TO MATHEMATICS
SEMESTER 1/2021
MM1115
5.4.1
5.4.2
5.4.3
Write down an expression in terms of x for the number of these books that can be bought from
NS400.
(1 marks)
The cost of each book is increased by $20. Write an expression in x for the number of books that can
now be bought from NS400.
(1 marks)
The number of these books that can be bought from $400 when the cost is increased by
NS20 is now three fifths when the cost was N$x. Write down an equation in terms of r that shows
this relationship.
(2 marks)
Calculate the cost of a book.
(4 marks)
Calculate the cost of 2 dozen books,
(2 marks)
Solve the quadratic equation x =
300-2x using factorisation.
(4 marks)
Activate v
Go to Setting
5.4.4
5.45
5.5
TOTALMARKS FOR ASSIGNMENTN1.88 MARKS​