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3 years ago

PLEASE SOMEONE HELP ME WITH THIS! I'LL GIVE BRAINLIEST TO WHOEVER HELPED!!!

Mathematics

1 answer:

allochka39001 [22]3 years ago

5 0

Step-by-step explanation:

C4H6O3 + H2O => 2C2H4O2

C2H4 + 3O2 => 2CO2 + 2H2O

C4H10O + 6O2 => 4CO2 + 5H2O

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manuel deposits $10000 for 12 yr in an account paying 4% compounded annually.He then puts this total amount on deposit in anothe

Naddik [55]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$10000\\
r=rate\to 4\%\to \frac{4}{100}\to &0.04\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &12
\end{cases}
\\\\\\
A=10000\left(1+\frac{0.04}{1}\right)^{1\cdot 12}\implies A=1000(1.04)^{12}\\\\\\ A\approx 16010.32$

he then turns around and grabs that money and sticks it for another 9 years,

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
~~
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$16010.32\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semi-annually, thus twice}
\end{array}\to &2\\
t=years\to &9
\end{cases}
\\\\\\
A=16010.32\left(1+\frac{0.05}{2}\right)^{2\cdot 9}\implies A=16010.32(1.025)^{18}
\\\\\\
A\approx 24970.64$

add both amounts, and that's how much is for the whole 21 years.

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Step-by-step explanation:

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2 years ago

your family's resturant bill was $38.55. your parents are leaving a 20% tip. how much is the grand total of your resturant bill?

olganol [36]

Step-by-step explanation:

20:100=x:$38.55

x=20×$38.55/100=7,71

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3 years ago

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Use the continuous compound interest formula to find the indicated value. A $94,000; P $78,870; r= 7.8%; t =? t= years (Do not r

Marta_Voda [28]

Answer:

time period (t) is 2.25 years

Step-by-step explanation:

Given data in question

amount (a) = $94000

principal (p) = $78870

rate (r) = 7.8 % = 0.078

to find out

time period (t)

solution

we know that continuous compound interest formula i.e.

amount = principal $e^{rt}$ ...............1

we will put all value a, p and r in equation 1

amount = principal $e^{rt}$

94000 = 78870 $e^{0.078t}$

$e^{0.078t}$ = 94000 / 78870

now we take ln both side

ln $e^{0.078t}$ ln (94000 / 78870)

0.078 t = ln 1.19183466

0.078 t = 0.175494

t = 0.175494 /0.078

t = 2.249923

so time period (t) is 2.25 years

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