Question

Y is in direct proportion to x. x = 25, y = 5. Find the value of y, if x = 9.​

Answer 1

Answer:bh

345

Step-by-step explanation:

y is in direct proportion to x. x = 25, y = 5. Find the value of y, if x = 9.​

Answer 2

Answer:

y = 1.8

Step-by-step explanation:

given y is in direct proportion to x then the equation relating them is

y = kx ← k is the constant of proportion

to find k use the condition x = 25, y = 5 , then

5 = 25k ( divide both sides by 25 )

$\frac{5}{25}$ = $\frac{1}{5}$ = 0.2 = k

y = 0.2x ← equation of proportion

when x = 9 , then

y = 0.2 × 9 = 1.8