Une boite contient 150 bonbons au chocolat noir et 120 au chocolat blanc. A. Donner sous forme dune fraction irreductible la proportion de bonbons au chocolat noire dans la boite.

b. Hugo mange 3 bonbons au chocolat noir et 3 bonbons au chocolat blanc.. A-t-on encore la meme proportion de bonbons au chocolat noir dans la boite ?

What two criteria are needed for triangles to be similar

Which of the following transformations will always produce a congruent figure?

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?