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MATHS

27 - 07 - 2020


ANSWERS TO EXERCISE 9 QUESTIONS





20 - 07 - 2020
EXERCISE 9


WEEK 12 - EXERCISE 8 ANSWERS





WEEK 11 - EXERCISE 7 ANSWERS





WEEK 12
EXERCISE 8




WEEK 6 - EXERCISE SIX (6)





WEEK 5 - EXERCISE FIVE (5)

1. 3/7 of students in a certain class are males. If there are 36 females, how many students are there in the class? 

2.  A box holds 24 jars of coffee. How many boxes will be needed to hold 768 jars? 

3. The perimeter of a rectangle whose length is ( 10+ x) cm and width 8cm is 46 cm. 
Find 
I. the value of x
II. the area 

4. Five girls weigh 28.9kg, 20.5 kg, 9.7 kg, 27.6  kg and 23.4 kg. What is their total weight? 

5. Five girls weigh 28.9kg, 20.5 kg, 9.7 kg, 27.6  kg and 23.4 kg. What is their average weight ? 

6. Simplify, leaving your answer in standard form 0.016 x 0.084 ÷ 0.48

7. Simplify : 3(1- p) - (p +3)

8. Correct the following to 2d. p. 
I. 0.04723
II. 19.999

9. State the place value and value of the digit 8 in the number 162.2689

10. Express 720 as a product of prime factors.








WEEK 3 - EXERCISE THREE (3)

Mathematics 
                 

1. A length of cable 26.48 m is cut into 4 equal pieces. What is the length of each? 

2.  Ama spent 17/35 of her pocket money on food and transport. If she spends 2/7 on transport only, what fraction does she spend on food? 

3.  In a class of 45 students, 30 read Biology and 25 read Chemistry. Each student reads at least one of the two subjects.

I.  Illustrate this information on a Venn diagram. 

II.  How many students read both subjects? 

4. A circle is divided into 16 equal parts. How many of these parts must be shaded in order to cover three quarters of the circle. 

5. Factorize completely the following expressions 
  a. 32xy + 16xyz
  b. 8pq - 24pk

6. Write these in words 
  a. 20420475
  b. 3927914

7. Explain with examples
  a. Equal sets
  b. Equivalent sets

8. Find the square root of 900.

9.  Simplify the following 
  a. (- 2 +3 ) + (-6) - 6
  b.  -8 + 5 + 8 - (-4) + 10

10. The data below shows the marks obtained in a test. 
  5 ,7 ,3, 8 ,7, 6 ,4, 5,7,3

I. Find the median mark. 
II. Calculate the mean mark. 
III. What is the modal mark?


Week 2 - Exercise 2

Mathematics 
Form 1

1. (i) Add 5897321 to 3689722

    (II) Write out your answer in words. 

   (III) Write the place value and value of the digit 5 in your answer. 

   (IV) Write your answer in (i ) in standard form. 

2.  There are 100 students in a class. Each student contributed GH¢14.25 towards a send-off party for their class teacher. What was the amount contributed by the class for this party? 

3.  The data below shows the number of goals scored by a football team in the a league season. 

4  8  7  6  2  1  7  4  3  7 
6  4  7  5  2  7  5  4  8  3

I. Construct a frequency distribution table for the data. 

II. Find the median goal. 

III. What is the modal goal? 

IV. Calculate the mean goal. 

V. If 6 goals qualifies a team to the next stage, what percentage of the teams qualified?

4. Expand and simplify 
a. (3x - 5y) (4x + 2y) 
b. (2f - 5g) (3f + 4g)
c. (5k + 4m) - (5k + 6m)


Week 1 - Exercise 1


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