Question

QUESTION – 8
1) Write the sign of the product, when the following are multiplied:
a) 31 negative integers x 2 positive integers
b) 18 negative integers x 3 positive integers
2) Divide:
a) 16x + 40 by 4 [ 1 /2]
b) 9 4 - 15 3 2 + 12 2 3 by −3 2 [11 /2]
3) Simplify: ( 13 15 − 3 5 ) ÷ ( 13 15 + 3 5 ) [2] 4) The sum of two rational numbers is −71/5. If one of them is −3 /10 , find the other. [2]
5) A lamp post has half of its length in mud and 1 3 of its length in water.
i) What fraction of its length is above the water? [1]
ii) If 3 1 3 of the lamp post is above the water, find the whole length of the lamp post.​

Answer 1

Answer:

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