Question
Janelys is going to invest in an account paying an interest rate of
compounded daily. How much would Janelys
need to invest, to the nearest ten dollars, for the value of the account to reach
in 12 years?
need to invest, to the nearest ten dollars, for the value of the account to reach
Ask by Reyes Powers. in the United States
Jan 23,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Janelys needs to invest approximately $930 to reach $1,890 in 12 years with a 5.9% daily compounded interest rate.
Solution
To find out how much Janelys needs to invest today (the present value
) to reach a future value
of $1,890 in 12 years with an interest rate of
compounded daily, we can use the formula for compound interest:
Where:
-
is the future value of the investment/loan, including interest. -
is the principal investment amount (the initial deposit or loan amount). -
is the annual interest rate (decimal). -
is the number of times that interest is compounded per year. -
is the number of years the money is invested or borrowed.
Given:
-
-
-
(since the interest is compounded daily) -
We need to rearrange the formula to solve for
:
Now, let’s calculate
step by step.
- Calculate
. - Calculate
. - Calculate
. - Finally, calculate
.
Let’s perform these calculations.
Step 1: Calculate
Step 2: Calculate
Step 3: Calculate
Now we can calculate
using the values from the previous steps.
Let’s perform these calculations.
Calculate the value by following steps:
Calculate the value by following steps:
- step0: Calculate:
- step1: Multiply the numbers:
Calculate or simplify the expression.
Calculate the value by following steps: - step0: Calculate:
- step1: Convert the expressions:
- step2: Multiply by the reciprocal:
- step3: Multiply the fractions:
- step4: Multiply:
Calculate or simplify the expression.
Calculate the value by following steps: - step0: Calculate:
- step1: Add the numbers:
- step2: Convert the expressions:
- step3: Use the properties of exponents:
Calculate or simplify the expression.
Calculate the value by following steps: - step0: Calculate:
- step1: Convert the expressions:
- step2: Multiply by the reciprocal:
- step3: Reduce the numbers:
- step4: Multiply:
- step5: Multiply:
Now that we have completed the calculations, let’s summarize the steps and results:
-
Calculate
: -
Calculate
: -
Calculate
: -
Calculate
:
To find the amount Janelys needs to invest, we round
to the nearest ten dollars:
Thus, Janelys would need to invest approximately $930 to reach a value of $1,890 in 12 years at an interest rate of
compounded daily.
Answered by UpStudy AI and reviewed by a Professional Tutor
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Beyond the Answer
To find out how much Janelys needs to invest today (the present value), we can use the formula for compound interest:
Where:
-
= Present Value -
= Future Value ($1,890) -
= annual interest rate (5.9% or 0.059) -
= number of times interest is compounded per year (daily, so 365) -
= number of years (12)
Plugging the values into the formula gives:
First, calculate the interest rate per period and the total number of compounding periods:
Now, calculate the compound factor:
Calculating that exponent term:
Now compute the present value:
Rounding to the nearest ten dollars, Janelys would need to invest approximately $1,020 today to reach her goal of $1,890 in 12 years.