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18 September, 02:51

Mary practiced violin for 2 hours and her brother practiced trombone t times as long or 8 hours. Write and solve an equation to find how many times as long Mary's brother practiced trombone

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  1. 18 September, 06:20
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    Mary's brother practiced 4 times as long.

    Step-by-step explanation:

    Mary practiced violin for 2 hours.

    Her brother practiced trombone t times as long or 8 hours.

    t times of 2 hours = 2t hours

    But, 2t = 8

    Divide both sides by 2.

    t = 4

    Hence, Mary's brother practiced 4 times as long as Mary.
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