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How To Find the Simple Interest Rate and Compound Interest Rate
Math can be a frustrating and confusing subject. Luckily, there is some math out there that we will have to use for the rest of our lives. In other words, all of those hours put into math class didn?t go completely to waste. One such topic of math is finding interest rate. These simple steps will help essay writer for you to find the interest rate, whether it be simple interest rates or compound interest rates, stress-free.
Identify the Formula for Finding the Simple Interest Rate
As with any math problem, a formula for interest rate must be used to solve for it. The formula is I=prt. Where "I" stands for the interest, "pr" is the principle rate, and "t" is the time. That way, essay writer free can easily plug in the numbers from the problem.
Locate the Numbers to Plug Into Formula
You must find the numbers in the problem and properly plug them into the formula. The time will typically be an increment like years or minutes or hours. The principle rate will usually be in dollars. And interest is the total. You are solving for ?r.?
Divide Both Sides By PT
What you do to one side you must do to the other. Now, take "pt" and divide both sides by "pt." You should get interest/pr*time=rate or I/(p*t)=r.
Multiply the Principle Rate and the Time First.
With the numbers plugged in, first essay writers want to multiply the principle rate and the time. This can be noted in the PEMDAS process, which describes the order in which equations are solved; parenthesis (P) comes before division.
Divide the Interest by the Previous Step Answer
Divide the interest so that it looks like this: I/(pt)=r. Whatever answer you got in the last step from multiplying "p" and "t," divide that by the interest. This will give you the final answer of the interest rate.
Find the Compound Interest Rate
Looking at your collection of numbers, use the formula Interest = (initial loan) x (interest rate). Take the numbers from your information and plug them in where you can. These will be used later.
Add the Interest
You will now want to add the interest to the loan at start. This will get you the loan at the end of the year. It should look like this: Interest + (loan at start x interest rate). Do the equation to get the answer.
Solve the Equation
Following the PEMDAS order, solve what is in parenthesis first. Then use addition to add this to the interest. You should then get your answer if using the correct order. Make sure to divide the percentage by 100 to get the decimal form of it for proper completion of the equation.
Do the Next Years of Interest
Using the same interest rate in decimal form, essay writers free can find the next year's compound interest. Just multiply the interest rate by the amount indicated in the year. This will give you your compound interest for each year.
Calculate the Periods If You Know a Future Value, Interest Rate and Present Value
The formula used for finding the number of periods it will take to make a certain amount of money at said interest rate is n = ln(FV / PV) / ln(1 + r). Plug in the values. "R" is the interest rate, "FV" is the future value, and "PV" is the present value, all while using the ln function. You should get an amount like how many years it will take to get said amount at said interest rate.
Math does not have to be terrifying. It can be simple, helpful and even a little entertaining. With the right concentration and a pencil and paper, finding the interest rate does not have to be intimidating. By following these simple steps, anyone can learn how to find interest rate.
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