Gallery Problems

The Dance

Work Time

The Dance

Two students are discussing the upcoming school dance.

Martin says: “There are 70 more girls than boys coming.”

Mia says: “Yes, I heard that the ratio of boys to girls is 3 to 4.”

  1. Can both Martin and Mia be right? Use words and diagrams to justify your answer.
  2. Think about the two ways of comparing quantities.

a. Describe the advantages and disadvantages of each way.

b. Think of situations in which each way of comparing quantities would be useful.