Question

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Answer 1

x varies inversely with y, so

x = k/y

for some fixed number k

Answer 2

x = 6 and y = 10


x = k/y

6 = k/10

60 = k ... Multiply both sides by 10.

k = 60


So we know the equation is

x = 60/y

now plug x = 8 into the equation and solve for y

Answer 3

7.5 ?

Answer 4

correct