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3 years ago

the variables y and x have a proportinal relationship and y=12 when x=5 . what is the value of y when x=8?

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

Answer:

y = $\frac{96}{5}$

Step-by-step explanation:

given that y and x are proportional then the equation relating them is

y = kx ← k is the constant of proportionality

to find k use the given condition y = 12 when x = 5

k = $\frac{y}{x}$ = $\frac{12}{5}$

y = $\frac{12}{5}$ x ← equation of proportionality

when x = 8, then

y = $\frac{12}{5}$ × 8 = $\frac{96}{5}$

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