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Mathematics

2 answers:

Sergeu [11.5K]2 years ago

8 0

I’ll try to find it

lakkis [162]2 years ago

3 0

Answer:

Ill try not to sure what I can do though!

Step-by-step explanation:

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If $8700 is invested at 3% annual simple interest, how much should be invested at 6% annual simple interest so that the total ye

True [87]

First off, see how much 8700 as principal, yields at 3% APR
that is $\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$8700\\
r=rate\to 3\%\to \frac{3}{100}\to &0.03\\
t=years\to &1
\end{cases}$

it will yield some amount

subtract that amount from 393
the difference is how much the yield will be on the 6% investment
so

$\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\quad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$8700\\
r=rate\to 3\%\to \frac{3}{100}\to &0.03\\
t=years\to &1
\end{cases}
\\\\\\
\implies \boxed{?}\\\\
-----------------------------\\\\
\textit{how much to invest at 6\%?}
\\\\\\
$

$\bf \qquad \textit{Simple Interest Earned}\\\\
(393-\boxed{?}) = Prt\quad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
t=years\to &1
\end{cases}
\\\\\\
\textit{solve for "P", to see how much should the Principal be}\\\\
\textit{keep in mind that }P+\boxed{?}=393\leftarrow \textit{both yields added}$

6 0

2 years ago

9) Fred is buying roses. The roses cost $1.68 each. How many roses did Fred buy if the bouquet cost

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

1.68 divided 25.20 = 15

5 0

2 years ago

3.75 : 1.25 is equivalent to 375 · 125.<br> The dividend and divisor were both multiplied by

Marat540 [252]

Answer:

100

Step-by-step explanation:

If you multiply 3.75 by 100 you get 375

3 0

2 years ago

Read 2 more answers

Find the length of the indicated side of the similar figure

neonofarm [45]

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