Which expression can be used to convert 22 Australian dollars to US dollars? Assume 1.2 Australian dollars equals 1 US dollar.

$22 AUD × StartFraction 1.2 U S D Over 1 A U D EndFraction

$22 AUD × StartFraction 1 U S D Over 1.2 A U D EndFraction
$1.20 AUD × StartFraction 1 U S D Over 1.2 A U D EndFraction
$1.20 AUD × StartFraction 1.2 A U D Over 1 A U D EndFraction

B. 22 AUD * ($1)/(1.2 AUD)

Step-by-step explanation:

Start with the equation of the conversion.

1.2 AUD = $1

Now divide both sides by 1.2 AUD.

(1.2 AUD)/(1.2 AUD) = ($1)/(1.2 AUD)

The left side equals 1 since you have a fraction in which the numerator and denominator are equal.

1 = ($1)/(1.2 AUD)

Notice that the line above shows that the fraction on the right equals 1. Since multiplying a number by 1 does not change the number, you can multiply a number of Australian dollars by ($1)/(1.2 AUD) without changing the amount.

Now start with 22 AUD.

We multiply it by the fraction ($1)/(1.2 AUD). This will nmot change the amount of ,money since this fraction equals 1.

22 AUD * ($1)/(1.2 AUD)

The expression above will give you a number in U.S. dollars since AUD cancels out.

B. 22 AUD * ($1)/(1.2 AUD)

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

m∠a is 90°

m∠b is 40°