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2 years ago

Please help me please

Mathematics

1 answer:

adelina 88 [10]2 years ago

5 0

Answer:

18 and 74 are true.

Step-by-step explanation:

So we want to solve this inquality. $13+4x> 75\\$ We subtract 13 from the left and the right. It leaves us with $4x>62$ . Then we want the x by itself so we divide the 4 from 4x and 4 from 62. We get $x> 15 \frac{1}{2}$ . So 15.5 is false since its not greater than. 0 is not a solution. 18 and 74 are true. I'm sorry if this is wrong.

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Step-by-step explanation:

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Read 2 more answers

A credit card issuer offers an APR of 15.83% and compounds interest daily.

Romashka-Z-Leto [24]

Answer:

C. Its APR, because it's less than its effective interest rate.

Step-by-step explanation:

The interest rate determines the money you must pay on the outstanding balance on the credit card.

The credit card company would advertise the lowest numbers it could truthfully use.

The APR is 15.83 %.

The formula for the effective interest rate is

$i = \left (1 + \dfrac{r}{n} \right )^{n} - 1$

where the interest rates are expressed as decimals.

If the APR is 15.83% and the interest is compounded daily,

$\begin{array}{rcl}i & = & \left (1 + \dfrac{0.1583}{365} \right )^{365} -1\\\\ & = & (1 + 0.0004337)^{365} -1\\ & = & (1.0004337)^{365} -1\\ & = & 1.1715 - 1\\& = & 0.1715\\& = & 17.15 \%\\\end{array}\\\text{The effective interest rate is $\mathbf{17.15 \%}$}$

The APR is less than the effective interest rate, so that's what the company would advertise.

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2 years ago