Lesson 1-6 Practice

Part A: For every three girls taking classes at a martial arts school, there are 4 boys who are taking classes. Suppose there are 236 boys taking classes at the school.

 

Create a proportion that could be used to predict the number of girls taking classes at the school. Use g to represent the number of girls.

• 3/4 = 236/g

• 4/236 = g/ 236

• g/236 = 4/3

• 3/4 = g/236

Part B: For every three girls taking classes at a martial arts school, there are 4 boys who are taking classes. Suppose there are 236 boys taking classes at the school.

 

Using the proportion you just created, predict the number of girls taking classes at the school. Fill in the blank.

There are ___ girls taking classes at school.

Part A: A grading machine can grade 96 multiple choice tests in 2 minutes. Suppose a teacher has 300 multiple choice tests to grade.

 

Create a proportion that could be used to predict the number of minutes it will take the machine to grade the 300 tests. Use m to represent the number of minutes.

• 96/2 = m/300

• 2/96 = m/300

• 96/300 = m/2

• 300/2 = 96/m

Part B: A grading machine can grade 96 multiple choice tests in 2 minutes. Suppose a teacher has 300 multiple choice tests to grade.

 

Using the proportion you created. predict the number of minutes it will take the machine to grade the 300 tests. Express your answer as a decimal.

It will take the machine ___ minutes to grade 300 test.

A 6-ounce package of fruit snacks contains 45 pieces. How many pieces would you expect in a 10-ounce package? Use any strategy to solve.

• 75 pieces

• 75 ounces

• 450 pieces

• 27 pieces

Of the 50 students in the cafeteria, 7 have red hair. If there are 750 students in the school, predict the number of students who have red hair. Use any strategy.

There are ___ students who have red hair in the school.

The wait times for two different rides are shown in the table. What is the unit rate of the Carousel for people per minute?

• k = 8 minute per people

• k = 8

• k = 8 people per min

• k = 1/8 people per min

The wait times for two different rides are shown in the table. If there are 120 people in line for the Swings, how long can you expect to wait to ride the ride? Express your answer in decimal form.

You will have to wait ___ minutes to ride the Swings.

Ingrid types 3 pages in the same amount of time that Tanya types 4.5 pages. If Ingrid and Tanya start typing at the same time and continue at their respective rates, how many pages will Tanya have typed when Ingrid has typed 11 pages? Express your answer as a decimal.

• 16.5 pages

• 16 1/2 pages

• 33/2 pages

• 7.3 pages

The ratio of kids to adults at a school festival is 11 : 7. Suppose there are a total of 810 kids and adults at the festival. How many adults are at the festival?

• 315 students

• 515 adults

• 515 students

• 315 adults