Calculating Red Car Percentages and Probabilities
Practice calculating percentages of red cars in varying scenarios, from simple fractions to larger numbers of cars. Understand the probability of picking a red car with these examples and worked solutions.
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Presentation Transcript
Expressing numbers as a Expressing numbers as a percentage (Calculator) percentage (Calculator) Silent Teacher Intelligent Practice Your Turn Narration 16 out of 48 cars are red. What is this as a percentage? Practice
Worked Example Your Turn 9 out of 45 cars are red. What is this as a 18 out of 90 cars are red. What is this as a percentage? percentage? 18 90 9 45 = = 0.2 100 = 20% 0.2 100 = 20% 16 out of 24 cars are red. What is this as a 16 out of 48 cars are red. What is this as a percentage? percentage? 16 24 16 48 = 0.66 100 = 66.6% = 0.33 100 = 33.3%
13 out of 23 cars are red. What is this as a percentage? 1) 130 out of 230 cars are red. What is this as a percentage? 2) 3) 13 out of 230 cars are red. What is this as a percentage? 4) 130 out of 2,300 cars are red. What is this as a percentage? 5) 1,300 out of 2,300 cars are red. What is this as a percentage? 1,300 out of 23,000 cars are red. What is this as a percentage? 6) 7) 1,300 out of 46,000 cars are red. What is this as a percentage? 8) 2,600 out of 46,000 cars are red. What is this as a percentage? 9) 26,000 out of 46,000 cars are red. What is this as a percentage? 10) 26,000 out of 46,000 cars are red. What is the probability of picking a red car ?
13 out of 23 cars are red. What is this as a percentage? 1) 56.5% 56.5% 130 out of 230 cars are red. What is this as a percentage? 2) 5.7% 3) 13 out of 230 cars are red. What is this as a percentage? 5.7% 4) 130 out of 2,300 cars are red. What is this as a percentage? 56.5% 5) 1,300 out of 2,300 cars are red. What is this as a percentage? 5.7% 1,300 out of 23,000 cars are red. What is this as a percentage? 6) 2.8% 7) 1,300 out of 46,000 cars are red. What is this as a percentage? 5.7% 8) 2,600 out of 46,000 cars are red. What is this as a percentage? 56.5% 9) 26,000 out of 46,000 cars are red. What is this as a percentage? 0.565 10) 26,000 out of 46,000 cars are red. What is the probability of picking a red car ?
