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Ninth Grade (Grade 9) Proportional Relationships Questions

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Grade 9 Proportional Relationships
Solve for [math]r[/math].
[math]18/90 = 1/r[/math]
  1. [math]r=9[/math]
  2. [math]r=5[/math]
  3. [math]r=90[/math]
  4. [math]r=18[/math]
Grade 9 Proportional Relationships
[math]a/b=c/d[/math] which is also equal to:
  1. ad=bc
  2. a/c=b/d
  3. b/a=d/c
  4. a+b/b=c+d/d
  5. none of the above
  6. all of the above
Grade 9 Proportional Relationships
Solve for [math]x[/math].
[math]1/2=x/16[/math]
  1. [math]8[/math]
  2. [math]2[/math]
  3. [math]1[/math]
  4. [math]32[/math]
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
The population at Citrus Valley High School is 2,375 and increases according to the expression 2,375(2.4t), where the rate is 2.4 and the time is equal to t. What effect would increasing the initial population have on the rate at which the number of students increase?
  1. An increase in the population will lower the rate
  2. An increase in the population will increase the rate
  3. An increase in the population will have no effect on the rate
  4. An increase on the population will make this school CRAZY!!!
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
Grade 9 Proportional Relationships
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