Simplify (2root2+5root3)(2root5-3root2) plz its urgent
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Simple interest is the amount charged on the principal amount with a fixed rate of interest for a time period.
The balance of the last month of Jerome's account is $880
<h3>What is simple interest?</h3>
Simple interest is the amount charged on the principal amount with a fixed rate of interest for a time period. Simple interest calculated only on the principal amount.
The formula for the simple interest can be given as,
Here, is the interest rate on the principal amount of
with the rate of
in the time period of
.
Given information-
Jerome's average balance checking account pays simple interest of 7.2% annually.
Jerome made $5.28 in interest last month.
Convert the interest rate monthly as,
Thus the monthly interest rate is 0.6 percent.
Suppose the balance of the last month is . Use the above formula to find the principal amount,
Solve it for ,
Hence, The balance of the last month of Jerome's account is $880.
Learn more about the simple interest here;