FRAME NUMBER 11

LEVEL A

Let's put our knowledge of ratio to work in solving a practical problem. In our school last year, there

were 576 students; 96 were in the mechanical drawing class.

a. What is the ratio of mechanical drawing students to the whole school?

b. What is the ratio of other students (not mechanical drawing) to those taking mechanical

drawing?

FRAME NUMBER 24

LEVEL B

Inverse proportion: When an increase in one quantity causes a proportional decrease in another

quantity, or a decrease in one quantity causes a proportional

in

another

quantity.

FRAME NUMBER 37

LEVEL C

Your sap has a scale of 1:50,000. What is the distance on the sap if the distance on the ground

is 3,750 feet?

Express answer in inches.

23

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