which expression can be used to convert 22 australian dollars to us dollars? assume 1.2 australian dollars…

which expression can be used to convert 22 australian dollars to us dollars? assume 1.2 australian dollars equals 1 us dollar.\n$22\\text{ aud} \\times \\frac{1.2\\text{ usd}}{1\\text{ aud}}\n$22\\text{ aud} \\times \\frac{1\\text{ usd}}{1.2\\text{ aud}}\n$1.20\\text{ aud} \\times \\frac{1\\text{ usd}}{1.2\\text{ aud}}\n$1.20\\text{ aud} \\times \\frac{1.2\\text{ usd}}{1\\text{ aud}}
Answer
Explanation:
Step1: Identificar la tasa de cambio
Dado que 1.2 AUD = 1 USD, la tasa de cambio es $\frac{1\ USD}{1.2\ AUD}$.
Step2: Convertir 22 AUD a USD
Multiplicamos la cantidad en AUD (22 AUD) por la tasa de cambio. La expresión es $22\ AUD\times\frac{1\ USD}{1.2\ AUD}$.
Answer:
$22\ AUD\times\frac{1\ USD}{1.2\ AUD}$ (segunda opción)