The rate of change is always constant

Mathematics

1 answer:

Marianna [84]4 years ago

8 0

This is not a true statement

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Which statement describes the first step to solve the equation by completing the square?

BabaBlast [244]

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8 0

3 years ago

Cynthia wants to take out a $8500 loan with a 4.75% APR. She can afford to pay $245 per month for loan payments. How long should

coldgirl [10]

Answer:

<em>She should borrow the money for 3.1161... years so that she can afford the monthly payment.</em>

Step-by-step explanation:

<u>Monthly payment formula</u> is: $M=P*\frac{r(1+r)^n}{(1+r)^n -1}$ , where

M = Monthly payment amount, P = Loan amount, r = rate of interest per month and n = total number of months.

Given that, Cynthia wants to take out a $8500 loan with a 4.75% APR and she can afford to pay $245 per month.

That means, $P= 8500, M= 245$ and $r= \frac{0.0475}{12}= 0.0039583$

Plugging these values into the above formula, we will get........

$245=8500*\frac{0.0039583(1+0.0039583)^n}{(1+0.0039583)^n-1} \\ \\ 245=\frac{33.64555(1.0039583)^n}{(1.0039583)^n -1}\\ \\ 245(1.0039583)^n -245=33.64555(1.0039583)^n\\ \\ 211.35445(1.0039583)^n=245\\ \\ (1.0039583)^n=\frac{245}{211.35445}=1.15919\\ \\ n= log_{1.0039583}(1.15919)=37.39327$