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Date May 2019 Marks available 2 Reference code 19M.1.SL.TZ2.T_7
Level Standard Level Paper Paper 1 (with calculator from previous syllabus) Time zone Time zone 2
Command term Find Question number T_7 Adapted from N/A

Question

The width of a rectangular garden is 4.5 metres shorter than its length, which is xx metres.

The perimeter of the garden is 111 m.

Write down an expression for the width of the garden in terms of xx.

[1]
a.

Write down an equation for the perimeter of the garden in terms of xx.

[1]
b.

Find the value of xx.

[2]
c.

Markscheme

* This question is from an exam for a previous syllabus, and may contain minor differences in marking or structure.

x4.5x4.5      (A1) (C1)

Note: Accept w=x4.5w=x4.5  OR  width=x4.5=x4.5.

[1 mark]

a.

2x+2(x4.5)=1112x+2(x4.5)=111     (A1)(ft) (C1)

Note: Follow through from their expression for the width from part (a).

[1 mark]

b.

4x9=1114x9=111 (or equivalent)     (M1)

Note: Award (M1) for correctly removing the parentheses and collecting xx terms. This may be seen in part (b).

(x=x=) 30      (A1)(ft) (C2)

Note: Follow through from their equation from part (b) provided x>4.5x>4.5.

[2 marks]

c.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.

Syllabus sections

Prior learning
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