Suppose y varies directly as x and y=21 when x 3 find x when y=42
1 answer:
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To write it in simplest form, you must find a common factor.
In
, 3 is a factor of both 3 and 9
3÷3=1 and 9÷3=3
So
is your answer in simplest form.
In
3÷3=1 and 9÷3=3
So