2 years ago

If x varies inversely as y, and x = 7 when y=3, find y when x = 9.

Mathematics

2 answers:

RSB [31]2 years ago

5 0

Step-by-step explanation:

x=k/y------(1)

k=xy

k= 7×3

k=21

from equation 1

x=k/y

y=k/x

y=21/9

y = 2.33

Liono4ka [1.6K]2 years ago

5 0

Answer:

3.85714285714

Step-by-step explanation:

7 = 3

9 = y

9*3=27

27/7 = 3.85714285714

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