Asked by kia
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
Answers
Answered by
Reiny
label the intersection of the two circles as x
so the 23 includes the x and the 34 includes the x
equation:
50 = 23 + 34 - x + 3
x = 10
so 10 needed both brakes and tires, so
13 needed only brakes
so the 23 includes the x and the 34 includes the x
equation:
50 = 23 + 34 - x + 3
x = 10
so 10 needed both brakes and tires, so
13 needed only brakes
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