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7.2 Word Problem Proportions

7.2 Word Problem Proportions. Steps:. Read word problem Set up ratio in words Write proportion Cross multiply Solve Write units with answer. Three fourths of the 7 th graders voted in a school election. If 264 7 th graders voted, how many 7 th graders are enrolled?.

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7.2 Word Problem Proportions

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  1. 7.2 Word Problem Proportions

  2. Steps: • Read word problem • Set up ratio in words • Write proportion • Cross multiply • Solve • Write units with answer

  3. Three fourths of the 7th graders voted in a school election. If 264 7th graders voted, how many 7th graders are enrolled? • 352 7th graders enrolled

  4. The temperature one day fell 2 degrees in 40 seconds. What is the average rate of temperature decrease per minute? x= 3 minutes

  5. One hundred cement blocks are needed to build a wall 16 feet high. How many cement blocks are needed to build a wall 48 feet hight? • X= 300 cement blocks

  6. If a car is traveling a speed of 45 miles per hour, how far can it travel in 40 minutes? • X= 30 miles

  7. Homework • Page 336 (19-28) all

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