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28-10-2020
Mathematics

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the value of y varies directly with x when y=24, x=2 . what is the value of y when x is 7?

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28-10-2020

Answer:

84

Step-by-step explanation:

y∞x

y=kx (where k is the constant)

24=2k

24/2=k

12=k

therefore the relationship between k,y and x is y=12x

y=12×7

y=84

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