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Anarel [89]
3 years ago
9

A is directly proportional to x and inversely proportional to y. If A=20 when x=6 and y=9, what is the value of A when x=9 and y

=6?
A) 1/20
B) 30
C) 45
D) 60
Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

A=45

A=kx/y

where k is constant

substituting the values for k

k= 20×9/6=30

when x=9, y=6

A= 30×9/6=45

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