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8 November, 03:57

Choose a strategy or a combination of strategies to solve the problem. Alicia forwards an e-mail to 2 of her friends. After 10 minutes, each of those 2 friends forwards the message to 2 more friends. If the message is forwarded like this every 10 minutes, how many people will have received Alicia's e-mail after 40 minutes?

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  1. 8 November, 04:12
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    62 people after 40 minutes.

    Multiply the previous number by 2 and add that to the total of recipients

    0 minutes = 2. 10 minutes (2+4) = 6. 20 minutes (2+4+8) = 14. 30 minutes (2+4+8+16) = 30. 40 Minutes (2+4+8+16+32) = 62
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