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2 years ago

Suppose y varies directly with x. Write a direct variation equation to relate x and y if y = 10 when x = 2

Mathematics

2 answers:

Ksivusya [100]2 years ago

4 0

Answer:

y=5x and y=40 when x=8

Cloud [144]2 years ago

4 0

Answer:

y = 5x

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 10 when x = 2

10 = 2k ( divide both sides by 2 )

5 = k

y = 5x ← equation of variation

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