Page 182 - Mathematics

Exercise 4.2

1. (a) 70, 30 (c) 6, 6, 4
2 1
(b) 45, 30 (d) ,
5 10
3. Juma - Tshs 30,000, Ali - Tshs 18,000, Aisha - Tshs 12,000.
5. 2.1 kg
7. 40 kg of A, 32 kg of B
9. 50 kg
11. 9 100 litres
Tanzania Institute of Education
13. There are 312 coins for Tshs 500 coins, 1 170 coins for Tshs 200 coin
and 3,900 coins for Tshs 100 coin.

9n 2
15.
2

Revision exercise 4

2
1. (a) 5% (b) 0.5% (c) 9.8% (d) 75% (e) 66 %
3
3. Tshs 1,824,000 9. 60 15. 5.89 cm
5. 27 kg, 108 kg, 135 kg 11. 57.6 kg
7. 8.89 grams of chlorine 13. 20 cm 17. Tshs 4,200,000
19. (a) 7 :9 (b) 56.25%

2 7 2
21. and 23. 25. Tshs 88,000
5 5 3

Chapter Five

Exercise 5.1
1. (a) 5n + 3k + 2,x 3 terms, coefficients are 5, 3 and 2 for n, k, and x,
Mathematics Form One respectively. 41 .

3y −
5,z 3 terms, coefficients are 6, 3− and 5− for x, y, and z,
(b) 6x −
respectively.
41
, x 1 term, the coefficient is
(c)
4

176 4

25/10/2024 09:52:16
Mathematics form 1.indd 176 25/10/2024 09:52:16
Mathematics form 1.indd 176