人気のある >

Charlotte earned 10,000.00 from a summer job and put it in a savings account that earns 9% interest compounded quarterly. When Charlotte started college, she had 11,668.00 in the account which she used to pay for tuition. How long was the money in the account?Round your answer to the nearest month.

解

Charlotte earned 10, 000.00 from a summer job and put it in a savings account that earns 9% interest compounded quarterly. When Charlotte started college, she had 11, 668.00 in the account which she used to pay for tuition. How long was the money in the account?Round your answer to the nearest month.

解

Time : 6.95

解答ステップ

Translate the problem into an equation:

21668 = 11668 (1 + \frac{0.09}{4})^{4 t}

t

を解く

21668 = 11668 (1 + \frac{0.09}{4})^{4 t} : t = 6.95

Time : 6.95

人気の例

The diameter of a circle is 15ft Find its 円周 in terms of pi Emir and Vivian deposit 757.00 into a savings account which earns 5% interest compounded quarterly. They want to use the money in the account to go on a trip in 2 years. How much will they be able to spend?The sum of two consecutive even integers is 50 Christopher took out a loan for \25, 690 to purchase a truck. With an annual interest rate of 5.2%, how much would he have paid after 5 years if the interest was compounded weekly?The perimeter of a square barn is 160 meters. How long is each side of the barn?