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3 years ago

If y is directly proportional to x, and y = 5 when x = 2, what is the value of y when x = 6?

Mathematics

2 answers:

Korolek [52]3 years ago

3 0

it could be 2.2 because every 5 you get 2 so it would be 10 and 4 so when y=6 then x should be 2.2.

Anuta_ua [19.1K]3 years ago

3 0

Answer:

y = 15

Step-by-step explanation:

Given that y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportionality.

To find k use the condition y = 5 when x = 2

k = $\frac{y}{x}$ = $\frac{5}{2}$ = 2.5, thus

y = 2.5x ← equation of proportionality

When x = 6, then

y = 2.5 × 6 = 15

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