Révision chapitre 2B Le tournoi de soccer
Une équipe de soccer offre un service de lave-auto pour financer l'organisation d'un tournoi.
On demande 5 $ pour le lavage d'une voiture sous-compacte, 8 $ pour une voiture
compacte et 12 $ pour une berline ou une camionnette. Durant la journée que dure
l'activité, on lave trois fois plus de voitures compactes que de sous-compactes et 40 berlines
ou camionnettes de moins que de voitures compactes. Combien de véhicules de chaque
type ont été lavés si les recettes de la journée sont de 950 $?

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.