Gabe had an average daily balance of $ 1,850.19 on his May credit card statement. The bill showed that his APR was 24.9 % and that his finance charge was $ 460.69 When he verified the finance charge, did he find that it was correct or incorrect? Explain.

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

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