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In direct variation y = kx. What is the value of k if y = 20 and x = 4 ?
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4 votes
In direct variation y = kx. What is the value of k if y = 20 and x = 4 ?

User Serefbilge
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1 Answer

4 votes
y = kx for fixed constant k
20 = k(4) --> 20 = 4k --> k=5

y = 5x

30 = 5x
x=6
User Alvae
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