Posted by kayla on Tuesday, November 8, 2011 at 8:48pm.
there are 24 students in a science class. Mr. Sato will give each pair of students 3 magnets. So far, Mr. Sato has given 9 pairs of students their 3 magnets. homw many more magents does Mr. Sato need so that each pair of students has excatly 3 magnets.

algebraic expressions  PsyDAG, Wednesday, November 9, 2011 at 12:47pm
Since they are given to pairs of students, you need 12*3 = 36 magnets in all. He has already given 9*3 = 27 magnets. What does that tell you?

algebraic expressions  Julie, Wednesday, December 9, 2015 at 12:04am
24/2*39*3

algebraic expressions  Kaylah, Thursday, February 9, 2017 at 7:37pm
I have no idea