Question

i) By what number should 2/3 be multiplied to get
-8/9 ?
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Answer 1

Answer:

Let the number to be multiplied by (2^-3) to get the answer 5 be ‘n'

Thus,

n × (2^-3) = 5

which means,

n × (1/8) = 5

Multiplying both LHS and RHS by 8, we get

8 × n × 1/8 = 5 × 8

That means,

n = 40.

Answer: We should multiply (2^ -3) by 40 to get 5.

Answer 2

Answer:

x * 2/3 = -8/9

x= -8/9 * 3/2

x= -4/3

Step-by-step explanation:

Hope it helps you

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