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30 November, 08:38

Susie had received 9 text messages when she turned her phone on. She received 15 text messages each hour after that. Victor had received 27 text messages when he turned his phone on. He received 15 text messages each hour after that. How many messages did each person receive after 4 hours?

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Answers (2)
  1. 30 November, 08:49
    0
    Suisie recieved 69 texts after 4 hours.

    Victor recieved 87 texts after 4 hours.

    Step-by-step explanation:

    Susie: 9 (inital value) + 15x (number of texts each hour after)

    9 + 15 (4) = 69

    Susie recieved 69 texts after 4 hours.

    Victor: 27 (inital value) + 15x (number of texts each hour after)

    27 + 15 (4) = 87

    Victor recieved 87 texts after 4 hours.
  2. 30 November, 09:02
    0
    Susie: 69.

    Victor: 87.

    Step-by-step explanation:

    You can solve this problem with either multiplication or addition. For instance:

    Since Susie and Victor receive the same amount of texts every hour, you can combine their starting values. For Susie:

    9 (how much she started with) + 15x4 (how many she receives after every hour) = 69

    Or:

    9+15+15+15+15 = 69

    Same for Victor:

    27 (how much he started with) + 15x4 (how many he receives after every hour) = 87

    Or:

    27+15+15+15+15 = 87.
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