snaisubdq snaisubdq

06-12-2017
Mathematics

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y and x have a proportional relationship, and y = 28 when x = 21. What is the value of x when y = 42?

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kylerfoster12p0gox4 kylerfoster12p0gox4

06-12-2017

21 just divide 42 to 2

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cutelion918 cutelion918

06-12-2017

Hey there!

You would cross multiply

28/21 * 42/x

42*21= 882/28= 31.5

31.5

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