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Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help

  • math -

    label the intersection of the two circles as x
    so the 23 includes the x and the 34 includes the x

    50 = 23 + 34 - x + 3
    x = 10

    so 10 needed both brakes and tires, so
    13 needed only brakes

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