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21 February, 16:26

Karla's doctor recommended her daily caffeine intake stay under 400 milligrams. Today, Karla has already had 265 milligrams of caffeine. Her favorite soda contains 45 milligrams. Which of the following inequalities could be used to solve for x, the number of sodas Karla can still have today?

45x < 665

45x + 265 < 400

45x < 400

45x - 265 < 400

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Answers (2)
  1. 21 February, 16:44
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    45x - 265 < 400 is your answer
  2. 21 February, 16:53
    0
    The answer would be; 45x - 265 < 400

    because you need to now how much sodas can she still drink by subtracting the milligrams that she already had. (-265)
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