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2 years ago

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

Mathematics

2 answers:

Sholpan [36]2 years ago

8 0

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.

Sladkaya [172]2 years ago

3 0

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

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Read 2 more answers

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

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