Please help I will give brainliest! thanks

Mathematics

1 answer:

svet-max [94.6K]3 years ago

4 0

Answer:

<h2>According to me D should be the right answer</h2>

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$20000 is invested in an account that earned 6% p.A. Compounding yearly for 3 years. The interest rate then went up to 8% p.A. F

GuDViN [60]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount \underline{for the first 3 years}} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$20000\\ r=rate\to 6\%\to \frac{6}{100}\dotfill &0.06\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &3 \end{cases}$

$\bf A=20000\left(1+\frac{0.06}{1}\right)^{1\cdot 3}\implies A=20000(1.06)^3\implies \boxed{A=2382.032} \\\\[-0.35em] ~\dotfill\\\\ ~~~~~~ \textit{Compound Interest Earned Amount \underline{for the next 4 years}}$

$\bf A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2382.032\\ r=rate\to 8\%\to \frac{8}{100}\dotfill &0.08\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases}$

$\bf A=2382.032\left(1+\frac{0.08}{1}\right)^{1\cdot 4}\implies A=2382.032(1.08)^4\implies \boxed{A\approx 3240.73} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{amount for this period}}{2382.032+3240.73}\implies 5622.762$

4 0

4 years ago

This makes no sense, math, i need help because this is BS and i don’t get it. there must be something i am missing.

nevsk [136]

Answer:

You are correct! But note the syntax:

the computer wants you to type in the box

2/3 x - 2

because "y =" is already written!

Step-by-step explanation:

4 0

3 years ago

Eric has two rock samples. One has a mass of 600 grams, and the other has a mass of 1 gram. He recorded the total mass as 7 kilo

lina2011 [118]

The real answer would be 0.601 kilograms.
1 gram plus 600 grams would equal 601 grams. That then is divided by 1000 because one kilogram equals 1000 grams.
Once you divide 601 and 1000, you then get 0.601

8 0

3 years ago

Read 2 more answers

HELP will give Brainliest.

Natalija [7]

Answer:

$\left(-4y\:-\:16\right)\:-\:8y\:+\:10\:+\:2y=-10y-16+10$