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vitfil [10]
3 years ago
14

Kelly buys a sweater for $16.79 and a pair of pants for $28.49. She pays with a $50 bill. How much change should Kelly get back?

Mathematics
1 answer:
andrew11 [14]3 years ago
4 0
16.79+28.49=45.28

50-45.28=4.72

Kelly would get $4.75 back
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Answer:

Semiannual payment = $ 1391.37

Total payment = $ 8348.22

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Step-by-step explanation:

Since, the semiannual payment formula of a loan,

P=\frac{PV(\frac{r}{2})}{1-(1+\frac{r}{2})^{-n}}

Where,

PV = present value of the loan,

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Here, PV = 7500, r = 6.3% =0.063, n = 6,

By substituting the value,

The semiannual payment would be,

P=\frac{7500(\frac{0.063}{2})}{1-(1+\frac{0.063}{2})^{-6}}

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Also, total payment = semiannual payment × total semiannual periods

= 1391.37 × 6

= $ 8348.22,

Also, the interest paid = total payment - present value

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The probability of the students who are not over 21, that drink alcohol is 0.5143.

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