Ch. 10 Review

1. 1Write in simplest form--> 6y^2 + 3y / 3y^2 + 6y
   
   [blank_start]= 2y+1/y+2[blank_end]

   1. A= 2y+1/y+2
2. 2Multiply and simplify--> 2x / x + 1 * x + 1 / 4x
   
   = [blank_start]1/2[blank_end]

   1. A1/2
3. 3Divide and simplify--> y + 2 / y - 3 divided by y + 2 / y + 1
   
   = [blank_start]y+1/y-3[blank_end]

   1. Ay+1/y-3
4. 4Add--> 2a / a + 1 plus 4a / a^2 - 1
   
   = [blank_start]2a/a-1[blank_end]

   1. A2a/a-1
5. 5Subtract--> 5b / 2 + b minus b - 3 / 2 + b
   
   = [blank_start]4b+3/2+b[blank_end]

   1. A4b+3/2+b
6. 6Solve--> 15 / x minus 15 / x + 2 = 2
   
   = [blank_start](-5, 3)[blank_end]

   1. A(-5, 3)
7. 7A lab is testing two high speed trains. One train travels 40 km/h faster than the other train. While one train travels 70 km, the other travels 60 km. Find their speeds.
   
   = [blank_start]240 km/h[blank_end]

   1. A240 km/h
8. 8Solution A is 30% alcohol and solution B is 60% alcohol. How much of each is needed to make 80 L f a solution that is 45% alcohol?
   
   = [blank_start]40L[blank_end]

   1. A40L
9. 9Divide--> (2x^2 + 3x -20) divided by (x + 4)
   
   = [blank_start]2x-5[blank_end]

   1. A2x-5

Description

This quiz is over rational expressions, so you may need a separate sheet of paper to do these problems, since it maybe hard to read them on the screen. Don't put spaces in answers that are rational expressions or equations. Enjoy!

Author

Elizabeth Gillanders

Language

English

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Tags

math8th grade

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