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10-10-2020
Mathematics

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suppose that y varies directly with x and y=10 when x=8. What is x when y=30?

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mieraanh mieraanh

10-10-2020

Y=kx
10 = 8k
10/8 = k
k = 1.25

30 = 1.25x
30/1.25 = x
24 = x
X = 24

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