All categories

2 years ago

How much simple interest would 1000 earn in 275 days at an interest rate of 4.21%

1 answer:

3 0

Now, there are 365 (excluding leap years) in a year, so, 275 days is not even a year, but is 275/365 of a year, or 55/73 of a year.

$\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$1000\\
r=rate\to 4.21\%\to \frac{4.21}{100}\to &0.0421\\
t=years\to \frac{275}{365}\to &\frac{55}{73}
\end{cases}
\\\\\\
I=1000\cdot 0.0421\cdot \cfrac{55}{73}$

You might be interested in

Factoring math/////////

damaskus [11]

Answer:

Step-by-step explanation:

If you want to factor this, you have to use the quadratic formula to do so.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$

For us, it looks like this:

$x=\frac{-3+/-\sqrt{(-3)^2-4(5)(4)} }{2(5)}$

which simplifies to

$x=\frac{-3+/-\sqrt{-71} }{10}$

Since it breaks every mathematical rule to have a negative number under an even index radical, we have to deal with that using the imaginary "i". You should know at this point that $i^2=-1$

so we will do a rewrite on that equation above:

$x=\frac{-3+/-\sqrt{i^2*71} }{10}$

which simplifies further to

$x=\frac{-3+/-i\sqrt{71} }{10}$

This is the answer but we can separate it into its proper standard form which is

$x=-\frac{3}{10}+\frac{\sqrt{71} }{10}i$ and $x=-\frac{3}{10}-\frac{\sqrt{71} }{10}i$

8 0

3 years ago

Read 2 more answers

If leo is 6 years old and max is 12 years, how many years would it be until max is 3 times as old as leo

Ivan

<h2>Greetings!</h2>

Answer:

If Leo is 6 and Max is 12 years older, Max is 18.

This means that max is already three years older than Leo:

6 * 3 = 18 , which is Max's age.

<h2>Hope this helps!</h2>

7 0

3 years ago

At a sporting event, the price for 3 cheeseburgers and 2 cups of lemonade is $14 and the price for 2 cheeseburgers and 4 cups of

crimeas [40]

C= the price of a cheeseburger and l = the price of a lemonade:

$3c + 2l=14\\2c+4l=12$

Divide the second equation by -2 to begin the process of solving by elimination:

$3c + 2l=14\\-1/2\ (2c+4l=12)\\\\3c+2l=14\\-c-2l=-6\\\\2c=8\\c=4$

Now that we have c, 4, we can plug it in to one of the equations to find l:

$3c + 2l=14\\3(4)+2l=14\\12+2l=14\\2l=2\\l=1$

So, each cheeseburger is $4 and each lemonade is $1. The final answer is:

1 cheeseburger and 2 cups of lemonade would cost $6.

6 0

3 years ago

Read 2 more answers

Explain how you know...?

Anestetic [448]

Answer:

Step-by-step explanation:

Because 7.7^2 equals 60,

8 0

2 years ago

How do you do distributive property because I have a test tomorrow and it's like half my grade and I wasn't in school when they

BaLLatris [955]

Say you have the equation 5(5x+7)=155
First you multiply 5 by everything in the parenthesis so you get 25x+35=155 then subtract 35 from both sides and get 25x=120 then 120 divided by 25 equals 4.8 so x=4.8

4 0

3 years ago