Question

Ratio
simplify

4x:9=7:3

Answer 1

`\boxed{x=(21)/(4)}`

Explanation:

`4x:9=7:3`

Turn ratios to fractions.

`(4x)/(9) =(7)/(3)`

Cross multiplication.

`4x * 3 = 9 * 7`

Simplify.

`12x=63`

Divide both sides by 12.

`x=(63)/(12)`

`x=(21)/(4)`

Answer 2

4x:9=7:3 can be written as

`(4x)/(9) = (7)/(3)`

Cross multiply

We have

4x(3) = 9 × 7

12x = 63

Divide both sides by 12

`x = (21)/(4) \: \: \: \: \: or \: \: \: 5 (1)/(4)`

Hope this helps you