Brandon works in a mail-room on weekends for some extra cash. one of his duties is to sort local mail from all the other mail. he can sort 8 pieces of mail in 10 seconds. how many pieces of mail will he be able to sort in 45 minutes?

2,160 pieces of mail

Explanation:

If every 10 seconds he sorts 8 pieces, then you have to first figure out how many pieces he sorts in 1 minute.

1 minute = 60 seconds

Divide 10 into 60 which = 6 times that he sorts mail in a minute.

Multiply 6 times 8 pieces = 48 pieces.

1 minute = 48 pieces

48 pieces times 45 minutes = 2,160 pieces of mail.

Brandon sorts 2,160 pieces of mail in 45 minutes.