Question

Which expression can be used to convert 22 Australian dollars to US dollars?

Assume 1.2 Australian dollars equals 1 US dollar.


$22 AUD ×

$22 AUD ×

$1.20 AUD ×

$1.20 AUD ×

Answer 1

$22 AUD x 1USD/1.2 AUD

Answer 2

Answer:

The required expression for the conversion is:

$22\ Australian\ Dollar(AUD)=\dfrac{22\ AUD\times 1\ USD}{1.2\ AUD}$

Step-by-step explanation:

We are given that:

$1.2\ Australian\ dollar(AUD)=1\ US\ Dollar(USD)$

Hence,

$1\ AUD=\dfrac{1}{1.2\ AUD}\ USD------(1)$

Now we are asked to convert 22 Australian dollars to US dollars.

Hence, from conversion (1) we have:

$22\ Australian\ Dollar(AUD)=\dfrac{22\ AUD\times 1\ USD}{1.2\ AUD}$