if varies directly as x and y=28 When x=7 find tha value of y when x=9
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if varies directly as x and y=28 When x=7 find tha value of y when x=9
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y varies directly as x and y= 28 when x= 7
Evaluate the values
Divide 7 to both sides
Simplify
find tha value of y when x=9, use the given value of k
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