subject
Mathematics, 22.08.2019 14:00 maddiecat43551p2rueh

In a class of 30 students, everyone has either a pierced nose or a pierced ear. the professor asks everyone with a pierced nose to raise his or her hand. nine hands go up. then the professor asked everyone with a pierced ear to do likewise. this time there are 25 hands raised. how many students have piercings both on their ears and their noses?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 20.06.2019 18:02
Plz ! what is the volume of this pyramid? with numbers of 30cm 14cm 18cm
Answers: 1
question
Mathematics, 21.06.2019 15:00
Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2
Answers: 3
question
Mathematics, 21.06.2019 17:30
Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3
Answers: 2
question
Mathematics, 21.06.2019 22:30
Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.
Answers: 2
You know the right answer?
In a class of 30 students, everyone has either a pierced nose or a pierced ear. the professor asks e...
Questions
question
Mathematics, 28.12.2019 17:31
question
Mathematics, 28.12.2019 17:31
Questions on the website: 13722361