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22-11-2016
Mathematics

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Suppose y varies directly with x, and y=25 when x=140. What is the value of x when y=36?

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Iknowit Iknowit

22-11-2016

y=25........x=140
y=36.........x=?
x=(36*140)/25
x=5040/25
x=201,6

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hunter44 hunter44

22-11-2016

Make y equal to the constant (k)multiplied by x which is. Y=KX Then put the numbers in it therefore k=0•18. Then put the new values into the y=KX 36=0•18x, X=36/0•18 therefore x=200

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