Asked by Liz
70% of 7 graders have iPhone and 60%are in chorus. However, 15% of 7th graders are neither in chorus or own phone. What % of students have an iPhone and are not in chorus
Answers
Answered by
Reiny
We do not know how many have phones and are in the chorus, label that percentage as x and place in the intersection of the two circles.
so we have :
70+60-x+15 = 100
x = 45
now you have all the entries, so what is your answer ?
so we have :
70+60-x+15 = 100
x = 45
now you have all the entries, so what is your answer ?
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