Question

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

Answer 1

Answer:

X directly propotionaly

Let "k" be constant..

x = k \times yx=k×y

10 = k \times 510=k×5

10 \div 5 = k10÷5=k

therefore K = 2

ACCORDING TO QUESTION...

x = k \times yx=k×y

x = 2 \times 6x=2×6

x = 12x=12

HOPE IT HELPS U

Answer 2

Answer:

(a) yx = ky

=> k = x

=> k = 10

(b) yx = 240

=> y = 240/24 = 10

(c) yx = 240

=> x = 240/90

=> x = 8/3