Online Self-Tests(B31)

• 
  

  1. If 80% of a textbook is heavier than a novel, what is the weight of the novel if the textbook is 8 pounds?

  ---

  (1 point)

  
  

  Answer:

  ---

  lb

• 
  

  2. Find the value of x.

  
  

  x	–	1	=	1
  5		10		2

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  3. A gallon of lemonade contains 83% water. If a glass of some soda contains 24% less than the lemonade, what much water does some soda have? Round your answer to the nearest hundreth.

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  4. Find the value of x.

  
  

  3	+	x	=	2
  12		12		3

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  5. Solve the equation.

  
  

  x

  –

  0.2

  =

  0.8

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  6. If x÷ 5 = 0.2 and y= 3, find the value of x× y.

  ---

  (1 point)

  
  

  Answer:

  ---