The cost of 12 oranges and 7 apples is 5.36.eight oranges and 5 apples cost 3.68.find the cost of each

Each orange costs 0.26 and each apple costs 0.32.

Step-by-step explanation:

12 oranges and 7 apples cost 5.36.

And the cost is 3.68 for 8 oranges and 5 apples.

If each orange costs x and each apple cost y then we have the equations  

12x + 7y = 5.36 (1) and  

8x + 5y = 3.68 (2)

Now, solving equations (1) and (2) we get,

15y - 14y = 3.68 × 3 - 5.36 × 2  

⇒ y = 0.32  

Now, from equation (2), we get 8x + 5 × 0.32 = 3.68

⇒ 8x = 2.08

⇒ x = 0.26

Therefore, each orange costs 0.26 and each apple costs 0.32. (Answer)

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which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points