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Bell Ringer Monday

Bell Ringer Monday. A recipe for 12 waffles calls for cups of milk, cups of flour, and cups of other ingredients. 1. How many cups of milk, flour, and other ingredients are needed to make 36 waffles?

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Bell Ringer Monday

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  1. Bell RingerMonday A recipe for 12 waffles calls for cups of milk, cups of flour, and cups of other ingredients. 1. How many cups of milk, flour, and other ingredients are needed to make 36 waffles? 2. If the recipe is doubled, how many cups of milk, flour, and other ingredients are needed? 3. Mr. Loya stated that the circumference of Earth at the equator is 24,902.4 miles. Write the expression that represents this number in scientific notation?

  2. A recipe for 12 waffles calls for cups of milk, cups of flour, and cups of other ingredients. 1. How many cups of milk, flour, and other ingredients are needed to make 36 waffles? 2. If the recipe is doubled, how many cups of milk, flour, and other ingredients are needed?

  3. 3. Mr. Loya stated that the circumference of Earth at the equator is 24,902.4 miles. Write the expression that represents this number in scientific notation?

  4. QuizMonday The students in Mr. Lee’s science class are ordering materials they will need for a science experiment. Each student will need a bag of plant seeds that costs $1.00 and a 6-plant tray that costs $3.50. If x represents the number of students in Mr. Lee’s science class, which equation can be used to find y, the amount in dollars spent by Mr. Lee’s students? A. y = 3.5x + 1 B. y = 4.5x C. y = x + 4.5 D. y = x + 3.5

  5. The students in Mr. Lee’s science class are ordering materials they will need for a science experiment. Each student will need a bag of plant seeds that costs $1.00 and a 6-plant tray that costs $3.50. If x represents the number of students in Mr. Lee’s science class, which equation can be used to find y, the amount in dollars spent by Mr. Lee’s students? Which equation can be used? Seeds = $1.00/student Plant tray = $3.50/student x = # students y = Total money needed Since each student needs $1 for the seeds and $3.50 for the tray, I added the two amounts together. Each student needs $4.50. To find the total cost, you would multiply the cost per student by the number of students. Equation B can be used to find the total cost.

  6. Bell RingerTuesday You want to know the favorite sport of middle school students. You ask every 5th person that enters the choir program at GMS. 1. Identify the population 2. Identify the sample 3. Identify the sampling method. 4. Is the survey biased? 5. Is the sample representative of the population?

  7. You want to know the favorite sport of middle school students. You ask every 5th person that enters the choir program at GMS. 1. Identify the population Middle School Students 2. Identify the sample People at GMS choir program 3. Identify the sampling method. Systematic: pattern of every 5th person 4. Is the survey biased? No: favorite sport at a choir program 5. Is the sample representative of the population? No: more than GMS students

  8. Quiz Tuesday A company wants to build a new water park. You go to Hurricane Harbor and ask everyone in the wave pool if they like water parks. Is this a good sample for the survey?

  9. A company wants to build a new water park. You go to Hurricane Harbor and ask everyone in the wave pool if they like water parks. Is this a good sample for the survey? Is this a good sample? Build a water park Survey of people if they like water parks Ask people at Hurricane Harbor This survey is biased because the question is being asked at a water park. In order to be a good sample, the survey should not take place at a location that I am asking about. No, this is not a good sample.

  10. Bell RingerWednesday Four figures have the following dimensions: Rectangular prism: l=4 in; w=5 in; h=5 in Cylinder: r=3 in; h=6 in Cone: r=3 in; h=6 in Rectangular pyramid: l=4 in; w=5 in; h=5 in 1. What is the probability that a figure chosen at random will have a volume greater than 150 cubic inches? 2. Two figures are pulled one at a time. After you pull the first time, you do not replace. What is the probability both figures will have a volume less than 100 cubic inches? 3. Calculate the mean. 4. Calculate the range. You may use a calculator.

  11. Rectangular prism: l=4 in; w=5 in; h=5 in Cylinder: r=3 in; h=6 in Cone: r=3 in; h=6 in Rectangular pyramid: l=4 in; w=5 in; h=5 in

  12. Rectangular prism: l=4 in; w=5 in; h=5 in V=100in3 • Cylinder: r=3 in; h=6 in V=169.56in3 • Cone: r=3 in; h=6 in V=33.33in3 • Rectangular pyramid: l=4 in; w=5 in; h=5 in V=56.52in3 • What is the probability that a figure chosen at random will have a volume greater than 150 cubic inches? • 2. Two figures are pulled one at a time. After you pull the first time, you do not replace. What is the probability both figures will have a volume less than 100 cubic inches?

  13. Rectangular prism: l=4 in; w=5 in; h=5 in V=100in3 Cylinder: r=3 in; h=6 in V=169.56in3 Cone: r=3 in; h=6 in V=33.33in3 Rectangular pyramid: l=4 in; w=5 in; h=5 in V=56.52in3 3. Calculate the mean. 4. Calculate the range.

  14. Quiz Wednesday Five years ago, a researcher estimated that there were 120 species of birds in a particular forest. Since then, the number of species has increased by 15%. How many species of birds are now in the forest?

  15. Five years ago, a researcher estimated that there were 120 species of birds in a particular forest. Since then, the number of species has increased by 15%. How many species of birds are now in the forest? How many species are there? Original = 120 species 15% increase I multiplied the original amount by the percent increase. This gave me the number of new birds. I added the new amount to the original amount to get the total number of species in the forest. There are 138 species of birds.

  16. Bell RingerThursday 1. According to information in the graph, no 10-12 pound packages were shipped. Why could this representation be inaccurate? 2. Calculate the mode. 3. Approximate the range. 4. Calculate the probability of randomly selecting a package that weighs between 1 – 3 pounds.

  17. 1. According to information in the graph, no 10-12 pound packages were shipped. Why could this representation be inaccurate? 2. Calculate the mode. The graph does not start at 0. There could have been 9 or fewer 10-12 pound packages shipped. Mode=tallest bar 4-6 lb packages

  18. 3. Approximate the range. 4. Calculate the probability of randomly selecting a package that weighs between 1 – 3 pounds.

  19. QuizThursday The volume of the smaller cube is 64 cubic feet. Find the volume of the larger cube. F 16,384 ft3 G 4,096 ft3 H 768 ft3 J 256 ft3

  20. The volume of the smaller cube is 64 cubic feet. Find the volume of the larger cube. What is the volume of the larger figure? Small volume = 64 cubic feet Cube Small length = x Large length = 4x To find the volume of a cube, I need to multiply the length by itself three times. I guessed and checked until I found the length that gives a volume of 64. Since the length of the larger cube is 4 times the length of the smaller cube, I multiplied the small length by 4 to get the large length. I multiplied that by itself 3 times to get the volume. The volume of the larger figure is 4096 cubic feet.

  21. Bell Ringer Friday Calculate the area of each triangle. Calculate the perimeter of each triangle. Are the figures similar? Calculate the probability of randomly picking a triangle and it is a right triangle. 6 5 B 3 8 A 11 4

  22. Calculate the area of each triangle. Calculate the perimeter of each triangle. 6 5 B 3 8 A 11 4

  23. Are the figures similar? 6 5 B 3 8 A 11 4

  24. 4. Calculate the probability of randomly picking a triangle and it is a right triangle. 6 5 B 3 8 A 11 4 32+42=52 62+82=112 36+64=121 9+16=25 100 ≠ 121 25=25 Right Triangle Not Right Triangle

  25. QuizFriday A cylindrical swimming pool has a radius of 3 feet and a height of 4 feet. How many cubic feet can the swimming pool contain?

  26. A cylindrical swimming pool has a radius of 3 feet and a height of 4 feet. How many cubic feet can the swimming pool contain? What is the volume? Cylinder Radius = 3 ft Height = 4 ft Cubic Feet To find the volume of a cylinder, I multiply the area of the base by the height. The base of a cylinder is a circle. I multiplied 3.14 by the radius squared to get the area. I multiplied the area of the base by the height to get the volume. Remember to Replace B! The volume of the cylinder is 113.04 cubic feet.

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