Given that 5 canadian dollars are worth 4 us dollars and that 9 australian dollars are worth 7 us dollars how many canadian dollars are there to 1 australian dollar. This is a ratio and porportion question not a real conversion.

There are 0.972222 Canadian dollars in 1 Australian dollar

Step-by-step explanation:

Lets find 1 US dollars worth how many Canadian dollars

∵ 5 Canadian dollars are worth 4 US dollars

By using ratio method

→  US  :  Canadian

→  4     :  5

→  1      :  x

By using cross multiplication

∴ 4 × x = 1 × 5

∴ 4 x = 5

- Divide both sides by 4

∴ x =

∵ x represents the Canadian dollars

∴ 1 US dollar is worth  Canadian dollars

Let us do the same with the Australian dollars and US dollars

∵ 9 Australian dollars are worth 7 us dollars

By using ratio method

→  US  :  Australian

→  7     :  9

→  1      :  y

By using cross multiplication

∴ 7 × y = 1 × 9

∴ 7 y = 9

- Divide both sides by 7

∴ y =

∵ y represents the Australian dollars

∴ 1 US dollar is worth Australian dollars

Now equate the two values if US dollars

∴ Australian dollars =  Canadian dollars

By using ratio method

→  Australian  :  Canadian

→                 :  

→  1                  :   z

By using cross multiplication

∴  × z = 1 ×

∴  z =

- Divide both sides by

∴ z = = 0.972222

∵ z represents the Canadian dollars

∴ 1 Australian dollar is worth 0.972222 Canadian dollars

There are 0.972222 Canadian dollars in 1 Australian dollar

answer:

sometimes

*i think

c

step-by-step explanation: