Question

If a and b varies inversely as each other and a = 16 when b = 4. Find b when a = 8

Answer 1

Answer:

b = 8........

Step-by-step explanation:

a and b varies inversely means

a = 1/b

so ab = 1

thus we can write as

a1b1 = a2b2

16×4 = 8 × b

so b = 16×4/8 = 8

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