Your weekly paycheck is 10 percent less than your coworker's.

Your weekly paycheck is 10 percent less than your coworker's. Your two paychecks total 780. Find the amount of each paycheck.     
Your coworker's:                and your's:     

Your two paychecks total 780, so Yours = 390 ... i.e., half of 780.     

Then, 390 = 0.90 • CoWorker's     ——>>     CoWorker's = 390 / 0.90     

                                                                       CoWorker's = 433.33     

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