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Understanding Ratios and Proportions: Unit Rates and Problem Solving

In this quiz review, students will explore ratios and proportions by writing each ratio as a fraction in its simplest form and finding unit rates for various scenarios. The review covers real-life applications such as calculating miles per hour, cost per box of cereal, and determining how many items can be purchased based on given costs. Students will practice solving proportions related to buying books and estimating quantities in larger bags. This engaging review is designed to enhance understanding of proportional reasoning in math.

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Understanding Ratios and Proportions: Unit Rates and Problem Solving

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  1. Unit 3 Quiz Review

  2. 7 to 15 12 out of 28 12 : 20 30 students, 16 are girls Write each ratio as a fraction in simplest form

  3. Find each unit rate • 260 miles in 4 hours • $5.68 for 3 boxes of cereal

  4. Solve each proportion (round to tenths)

  5. Is this ratio a proportion?

  6. Write a proportion and solve • 5 books costs $12.75. At this rate, how many books can you buy for $38.25 (pre-tax)?

  7. Write a proportion and solve • You inspect a bag of jolly ranchers and find 12 grape candies in a bag of 30. At this rate, how many grape candies should you find in the large bag of 600?

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