Answered


F
∝
a
If
F
=
72
when
a
=
9
find,
F
when
a
=
7

Answer :

Answer:

56

Step-by-step explanation:

F ∝ a

72 ∝ 9   write this using = :

72 = k9  find k

72/9 = 8

so: if a is 7

7 x 8 = 56

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