Page 326 - C:\Users\azizu\Documents\Flip PDF Professional\Matematics-Form-1-1\

2. 3 is less than b. Mastery 7.1 (b) The area of an apartment is
3 , b more than 1 000 m .
2
1. (a) , (b) , (c) ,
Self Practice 7.1c (d) . (e) . (f) . (c) The total expenditure of four
1. (a) m is less than or equal to 8. 2. (a) y is greater than x. customers who patronize the
restaurant is at least RM60.
m < 8 (b) y . x
m 8 3. (a) t = deposit Self Practice 7.2b
t is greater than or equal to 1. (a) x > 7
5 6 7 8 9 10 100. (b) x . –9
(c) x , –21
(b) t is greater than or equal to (b) a 100
21. (d) x > 4
t > 21 80 90 100 110 120 130 2. At least 200 canned drinks in an
t 21 a > 100 hour.
3. 10 months
4. (a) x 3
19 20 21 22 23 24 4. 5 hours
1 2 3 4 5 6 Self Practice 7.2c
Self Practice 7.1d
(b) x 15 1. (a) x . 5
1. (a) 14 . 5 (b) x < –3
(b) –8 , 8 3
(c) –32 , –23 12 13 14 15 16 17 (c) – , x < 2
2
(d) 1.5 , 6.7 (c) x –19 (d) –1 < x , 1
1 1
(e) , (e) x , 1 5
14 13 –21 –20 –19 –18 –17 –16 7
(f) –11.8 , –2 (f) x . 3
(d) x –5
2. (a) –2 , 10
(b) –15 , 0 –7 –6 –5 –4 –3 –2 Mastery 7.2
(c) –4.56 , 2.01 1. (a) x > 18 000
2 1 (e) y 8.3
(d) –17 , 20 (b) t < 8
9 3 (c) h . 700
1 1 8.1 8.2 8.3 8.4 8.5
(e) ,
20 7 2. (a) The speed of the vehicle
1 (f) p –5.7 should not exceed 30 km/h
(f) –8 ,
9 when approaching the
–5.9 –5.8 –5.7 –5.6 –5.5
Self Practice 7.1e school area.
(g) 3 (b) The mass of a car is greater
1. (a) (i) , (ii) , (iii) , x – 5 than 1 100 kg.

(b) (i) . (ii) . (iii) .
–1 4 3 2 1 (c) A student whose parents’
(c) (i) . (ii) . (iii) . – 5 – 5 – 5 – 5 salary is less than RM900
2. (a) (i) , (ii) , (iii) , qualifies to apply for a
(h) q 7.8
(b) 8c , 16c scholarship.
8 , 16 7.6 7.7 7.8 7.9 8.0 3. (a) x 1 200
c c
(c) 16c . 8c 5. (a) . (b) , (c) . 1000 1100 1200 1300 1400
16 . (d) . (e) , (f) ,
8
c c (b) x > 1 200
3. (a) (i) , (ii) . (iii) . Self Practice 7.2a 4. 2 packets
(iv) . (v) . 1. (a) x > 450 000 5. (a) m < 10.50
(b) 6d . 12d (b) y , 50 (b) m 10.5
6 . 12 (c) k < 30
d d (d) q > 600 8 9 10 11 12
(c) 12d , 6d 2. (a) The number of passengers
6
12 , in a taxi should not 6. 21 boys
d d exceed 4. 7. 7 months

315
Answers

14 Ans Math F1.indd 315 11/10/16 12:23 PM