Answer:
1) $ 145
2) $ 155
3) $ 75, $ 25 and $ 65
Step-by-step explanation:
1) Given,
Changes in amount of Jan's account on Monday are,
- $25, - $45, and - $75, ( negative sign indicates withdrawing )
Thus, total changes in balance = - 25 - 45 - 75 = - $ 145,
Hence, she withdrew $ 145 total.
2) Changes in amount of Julie's account on Monday are,
- $35, - $55, and - $65 ,
Thus, total changes in balance = - 35 - 55 - 65 = - $ 155
Hence, she withdrew $ 155 total.
3) ∵ Julie and Jan's brother made three withdrawals and withdrew $10 more than Julie did.
So, the total withdrawal amount of their brother = $ 165
So, the possible three widrawal are,
$ 75, $ 25, $ 65