FRAME NUMBER 12

LEVEL A

Let's try another problem. In a class of 24 students, 3 students failed to pass the course.

a. What is the ratio of students who passed the course to the whole class?

b. What is the ratio of students who failed the course to students who passed the course?

FRAME NUMBER 25

LEVEL B

Example of direct proportion: "Six workmen make 1,800 articles in one day. How many

workmen would be needed to make 2,700 such articles at the same rate?" This is a direct proportion

because an increase in articles will require (a, an)

in workmen.

FRAME NUMBER 38

LEVEL C

The distance between two points on a map is 12.5 inches. The same distance on a map in your

possession, with a scale of 1:100,000, is 8.6 inches. What is the scale of the first map?

25

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