The amount Jerry paid in interest is $1,040.
Given to us,
Jerry's principal amount = $ 22,000,
quarterly payment for each quarter = $ 640
Total time for which Jerry paid each quarter = 9 years
As We know that in a year there are 4 quarters,
so, [tex]\rm 1\ year = 4\ quarters[/tex],
[tex]\rm 9\ year = 9\times 4\ quarters[/tex],
9 years = 36 quarters,
The total amount paid by Jerry for nine years in each quarter =
quarterly payment for each quarter x no. of quarters for which amount paid
[tex]\rm Total\ amount\ paid\ by\ Jerry\ for\ nine\ years\ in\ each\ quarter = \$640\times 36 quarters = \$23,040[/tex]
Thus, the total amount paid by Jerry for nine years in each quarter is $23,040.
Therefore,
[tex]\rm Amount\ Jerry\ pay\ in\ interest = Amount\ Jerry\ paid- Principal\ amount[/tex],
[tex]\rm Amount\ Jerry\ pay\ in\ interest = \$23,040-\$22,000 = \$1040[/tex]
Hence, the amount Jerry paid in interest is $1,040.
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