Shawn bixby borrowed $21,000 on a 120-day, 12% note. after 70 days, shawn paid $2,400 on the note. on day 100, shawn paid an additional $4,400. use ordinary interest. a. determine the total interest use the u. s. rule. (do not round intermediate calculations. round your answer to the nearest cent.) b. determine the ending balance due use the u. s. rule. (do not round intermediate calculations. round your answer to the nearest cent.)

Ending Balance Due = $14,980.106

Total Interest = $780.106

Explanation:

solution

Total Interest and Ending balance due by the U.S. Rule are as given below

so interest is here for 70 day with 12 % of 21000

interest = 0.12 × 21000 ×  

interest = $490

so

payment = $2400 - $490

payment = $1,910

and adjusted balance  will be after that

adjusted balance  = $21,000 - $1,910

adjusted balance  = $19,090

and

on 100 day

Interest  =  0.12 × $19,090  ×  

Interest  =  $190.9

and

Payment  = $4,400 - $190.9

payment = $4209.1

So

adjusted balance  = $19090  - $4209.1

adjusted balance  = $14,880.9

and interest = $14,880.9 × 0.12  ×  

interest = $99.206

so Ending Balance Due  will be

Ending Balance Due = $14,880.9 + $99.206

Ending Balance Due = $14,980.106

and

Total Interest = $490 + $190.9 + $99.206

Total Interest = $780.106

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