L’air est constitué principalement d’azote et d’oxygène. Dans un volume d’air donné, le volume d’azote correspond à 78,6% du volume total et celui d’oxygène a 20,9%. Sachant qu’une salle de classe a un volume de 125m3, calculer le volume, en m3, de chacun des gaz présents dans cette salle.

What is the value of x? enter your answer in the box. (cm)

Ou have a 20-ounce bottle of juice. you pour out 14 of the bottle to share with a friend. if you pour out 3 ounces for yourself, what fraction of the 20 ounces will be left in the bottle? clear check 35 25 12 1320

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.