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Posted by on Wednesday, December 21, 2011 at 5:53pm.

72 tires are changed between a small and large truck over 8 weeks. The large truck has 3 times as many tires as the small truck. How many tires does the small truck have?

  • math - , Wednesday, December 21, 2011 at 6:04pm

    x + 3x = 72

    4x = 72

    x = 18

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