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Hitman42 [59]
2 years ago
5

Guadalupe's credit card has an APR of 23% calculated on the previous monthly balance and a minimum payment of 2% starting the mo

nth after the first purchase her credit card record for the last 7 months is shown in the table below how are her finances charges calculated
Mathematics
2 answers:
Harman [31]2 years ago
8 0
Answer: To find the finance charge you multiply the balance times 0.23 / 12 .

To find the interest charge to an account, you have to multiply the balance by the percent rate (APR). 

The problem in this case is that interest is charged monthly, but the rate is yearly.

To fix this problem, just divide the rate by 12.  
0.23 / 12 
MAXImum [283]2 years ago
7 0

Answer:

Previous balance + new charges-principal paid

Step-by-step explanation:

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Finger [1]

Answer:

C.I. =  (2.297, 11.703)

Step-by-step explanation:

The t-statistic for difference of mean is given by,

t=\frac{\bar{x_{1}}-\bar{x_{2}}}{\sqrt{\frac{s_{1}^{2}}{n_{1}}+\frac{s_{2}^{2}}{n_{2}}}}

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s₂ = 6

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Substituting all value in formula,

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Using this formula, we get, t = 1.5342

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which indicates that we are 99% confident that the true difference between population means is contained by the interval (2.297, 11.703)

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3 years ago
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vladimir2022 [97]

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