Mathematics for IGCSE & O level - Proportion (Section 2 - No. 37) | ExamPlay

Mathematics for IGCSE & O level - Proportion (Section 2 - No. 37)

If y varies directly with x, what is the constant of proportionality if y=10 when x=2?

2

5

10

20

Explanation

y=kx, 10=k*2, k=5.

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