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Mark worked on math homework less than 1/3 the amount of time that his brother did. If Mark spent 25 minutes on his math homework, how much time did his brother spend on his mat…

Mark worked on math homework less than 1/3 the amount of time that his brother did. If Mark spent 25 minutes on his math homework, how much time did his brother spend on his mat…
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Mark worked on math homework less than 1/3 the amount of time that his brother did. If Mark spent 25 minutes on his math homework, how much time did his brother spend on his math homework?

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User Lsmpascal
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7.8k points

1 Answer

5 votes
25 < 1/3x
25 ÷ 1/3 < x
25 × 3/1 < x
75 < x

Since x is greater than 75, Marks brother spent greater than 75 minutes studying.
answered
User MANISH ZOPE
by
9.2k points
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