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25-05-2020
Mathematics

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The value of y varies directly with x.If y=100 when x=4,what is the value of y when x=8?

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25-05-2020

Answer:

200

Step-by-step explanation:

If y varies directly with x, this means that, for a value k, k*x=y. Therefore, if k*4=100, and k stays the same, k*8=k*4*2=100*2=200

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