calebmoore925
03.01.2020 •
Mathematics
Sam opened a money-market account that pays 2% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?
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Ответ:
420 = 7000 x .02 x t
420 = 140 x t
420/140 = 140 x t /140
t = 3 years
Ответ:
19z+6 +16h
Step-by-step explanation: