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To calculate simple interest, you use the formula: Interest = Principal x Rate x Time. In this case, the principal is $6000, the interest rate is 7.39% (or 0.0739 in decimal form), and the time is 4 years. Plugging these values into the formula gives: Interest = $6000 x 0.0739 x 4 = $1774.80. Therefore, the simple interest on the loan would be $1774.80.
To calculate the time required to earn $6,000 in interest on a principal of $9,000 at an annual simple interest rate of 4.1%, use the formula ( I = P \times r \times t ). Rearranging the formula to solve for time ( t ) gives ( t = \frac{I}{P \times r} ). Plugging in the values: ( t = \frac{6000}{9000 \times 0.041} \approx 16.23 ) years. Therefore, it would take approximately 16.23 years to earn $6,000 in interest.
You substitute the variable for its value. Or you substitute the variables for each of the values.
There is no single formula for "solving" polygons. The answer will depend on what information you have and what information you require. Then there may or may not be a formula to enable you to find the required information. As a simple example, if you know two sides of a triangle, there is no formula that will determine the third side other than a range of possible values.
To calculate the volume of a tank, you multiply its length, width, and height. However, the height of the tank is not provided in your question. Assuming you have a height measurement, you can use the formula: Volume = Length × Width × Height. If the height is known, simply substitute the values into the formula to find the volume.