Question

If y is directly proportional to x and y = 24 when x = 10, than find:
(a) the constant of proportionality,
(b) the value of x when y = 90​

Answer 1

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2.4 is constant of proportionality  with assumptions

otherwise data is not sufficient to get constant of proportionality

Step-by-step explanation:

Y ∝ aX + b

for x = 10

24 = 10a + b

if we assume that b = 0

then

24 = 10a

a = 2.4

2.4 is constant of proportionality  if b = 0

Answer 2

Step-by-step explanation:

we know that when yis directly proportional to x then

y/x= k ( k mean constant)

24/10 = k

k 2.4 ans