Question

if x and y are directly proportional and x/y=4.find "y" when x=5.​

Answer 1

Answer:

y=20

Step-by-step explanation:

x/y=4

5/y=4

y=20

Hope this will help you:)

Answer 2

Answer:

$x = 5 \\ \\ \frac{x}{y} = 4 \\ \frac{5}{y} = 4 \\ 5 = 4y \\ \boxed{ \large \underline{ \underline{ \frac{5}{4}}} = y} \\ \\ \underline{ \large Let's \: \: Verify} : \\ \frac{x}{y} = 4 \\ \frac{5}{ \frac{5}{4} } = 4 \\ \cancel 5 \times \frac{4}{ \cancel 5} = 4 \\ \underline{ \underline{ \large 4 = 4}} \\ \\ \large Hence, \: \: Verified$