Math Problem Statement

Use the compound interest formula Aequals​P(1plus​r)Superscript t and the given information to solve for r. Aequals​$2600​, Pequals​$1700​, tequals6

Do not simplify

Solution

To solve for the rate rr using the compound interest formula:

A=P(1+r)tA = P(1 + r)^t

Given:

  • A=2600A = 2600
  • P=1700P = 1700
  • t=6t = 6

We substitute these values into the formula:

2600=1700(1+r)62600 = 1700(1 + r)^6

Next, solve for rr step by step.

  1. Divide both sides of the equation by 1700:

26001700=(1+r)6\frac{2600}{1700} = (1 + r)^6

  1. Simplify the fraction on the left-hand side:

26001700=2617\frac{2600}{1700} = \frac{26}{17}

Thus, the equation becomes:

2617=(1+r)6\frac{26}{17} = (1 + r)^6

At this point, you would take the 6th root of both sides to isolate 1+r1 + r, and then solve for rr, but since you requested not to simplify, we'll leave the equation in this form:

r=(2617)161r = \left( \frac{26}{17} \right)^{\frac{1}{6}} - 1

Do you want to proceed with simplifying, or do you have any questions about this step?


Here are 5 related questions that expand on this information:

  1. How would you calculate the final value of rr by simplifying the equation?
  2. What is the impact of changing the time period tt on the interest rate rr?
  3. How would the formula change if the interest was compounded monthly instead of annually?
  4. Can you calculate the value of rr using logarithms to avoid roots?
  5. How would you use this formula to calculate future investment returns with a known interest rate?

Tip: Compound interest calculations are sensitive to both the rate and the time period. Small changes in either can have a large effect on the final amount.

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Math Problem Analysis

Mathematical Concepts

Algebra
Exponential Equations
Compound Interest

Formulas

Compound Interest Formula: A = P(1 + r)^t

Theorems

Exponential Growth Formula

Suitable Grade Level

Grades 9-12