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2 November, 09:23

A store has a total of 15 bicycles and tricycles. There are 37 wheels. How many tricycles does the store have?

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Answers (2)
  1. 2 November, 09:30
    0
    X+y=15

    2x+3y=37

    15-x=y

    2x+3 (15-x) = 37

    2x + (45-3x) = 37

    2x-3x+45=37

    -1x=-8

    x=8

    x is the amount of bikes, so there are 8 bikes. 8x2=16.

    37-16=21

    21/3=7

    There are 7 tricycles.
  2. 2 November, 09:44
    0
    The store has 7 tricycles (21 wheels) and 8 bicycles (16 wheels)

    21+16=37 wheels
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