Gallery Problems

The Adults at School

Work Time

The Adults at School

  1. All adults at Martin Luther King Middle School are either teachers or non-teaching staff members. The ratio of teachers to non-teaching staff is 3:5.
    a. What is the ratio of teachers to adults?
    b. What is the ratio of non-teaching staff to adults?
    c. What is the ratio of non-teaching staff to teachers?
    d. What percent of adults is non-teaching staff?
  2. Make a diagram to represent the ratio of teachers to non-teaching staff at Martin Luther King Middle School.

  3. There are two types of ratios: part-part ratios and part-whole ratios. Explain why percents are always part-whole ratios. Refer to the tape diagram shown.

  4. For each school listed in the table shown, give the comparison of teachers to non-teaching staff in the following forms: as a whole number ratio (a :b), as a decimal (rounded to hundredths), as a fraction in simplest form, and as a percent of the whole.

  5. Suppose the ratio of teachers to non-teaching staff at a school is 1:r.
    a. Express this ratio as a fraction.
    b. What does the expression represent?
    c. The teachers make up 40% of the adults at school. Calculate r.