28-11-2020
Mathematics

contestada

y is directly proportional to x. when x = 8, y = 20. determine the value of y when x = 3

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ackahedem582 ackahedem582

28-11-2020

Step-by-step explanation:

y is directly proportional to x

y = kx

k represents the constant of proportionality.

when y = 20 and x = 8:

20 = 8k

Dividing both sides by 8 gives:

k = 2.5

Hence when x = 3.

y = 2.5(3)

y = 7.5 .

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