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1 February, 05:37

30t+20c=<300

5t+10c=<110. Solve for t and c

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Answers (1)
  1. 1 February, 05:52
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    30t + 20c = < 300

    5t + 10c = < 110

    10c = < 110-5t

    30t + 220-10t = < 300

    20t = < 80

    t = 4

    120c + 20c = < 300

    20c = 180

    c = 9
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