Question

If x to y as 4 is to 5 then what is y:x Please solve mark brainliest

Answer 1

Answer:

y : x: = 5 : 4

Step-by-step explanation:

x to y = 4 to 5

Rewrite;

x:y = 4:5

Remember, a ratio is another way of representing a fraction, hence one can do the same operations that one could do with a fraction. Therefore, one can take the cross products of a ratio;

x : y= 4 : 5

5x = 4y

Inverse operations;

5x = 4y

x = $\frac{4}{5}$y

Now substitute this into the equation y:x

y : $\frac{4}{5}$y

Rewrite as a fraction;

$\frac{y}{\frac{5}{4}y}$

Simplify;

$\frac{1}{\frac{4}{5}}\\\\\frac{5}{4}$

Rewrite as a ratio;

y : x = 5 : 4