
Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
النسخة 12الرقم المعياري الدولي: 978-0132605540
Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
النسخة 12الرقم المعياري الدولي: 978-0132605540 تمرين 96
Find the principal in the following. Round to the nearest cent. (See Example.)
Finding Principal Given Interest in Days
Gilbert Construction Company borrows funds at 10, for 54 days to finish building a home. Find the principal that results in interest of $1560.
Quick TIP
Remember that time must be in years or fraction of a year.
SOLUTION
Write the rate as.10, the time as
and then use the formula for principal.
The principal is $104,000.
Check the answer using I = PRT. The principal is $104,000, the rate is 10%, and the time is
year. The interest should be, and is, $780.
The calculator approach to finding the principal uses parentheses so that the numerator is divided by the entire denominator.

Finding Principal Given Interest in Days
Gilbert Construction Company borrows funds at 10, for 54 days to finish building a home. Find the principal that results in interest of $1560.

Quick TIP
Remember that time must be in years or fraction of a year.
SOLUTION
Write the rate as.10, the time as


The principal is $104,000.
Check the answer using I = PRT. The principal is $104,000, the rate is 10%, and the time is


The calculator approach to finding the principal uses parentheses so that the numerator is divided by the entire denominator.


التوضيح
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Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller
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