Rachel Kelley

Answer the following questions:

• 1) If you know that a gallon of water weighs 7.5 pounds, what would be the weight of 50 gallons?
  Answer:
• 2) If a biker can travel at 6 miles per hour, he covers 6 miles in one hour. If the biker decreases his speed to 3 miles per hour, how long will it take him to cover the same distance?
  Answer:
• 3) A carpenter wants to retile a bath using what supplies are on hand. He has 100 tiles. 36 are blue, 24 are yellow, and the remainder are white. What is the ratio of blue to white tiles?
  Answer:
• 4) Tom has a bag of red and green candy with 12 red pieces and 10 green pieces. Use a proportion to predict how many pieces will be red out of a bag of 220 pieces.
  Answer:
• 5) An internet company sends and receives 582 e-mails every three seconds. How many emails does the company handle in one 24- hour day?
  Answer:
• 6) Give an example of a real world simple random unbiased sample.
  
• 7) Give an example of a real world voluntary biased sample.
  
• 8) Give an example of a real world systematic unbiased sample.
  
• 9) Give an example of a real world convenient biased sample.