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Solving Rate Problems Using Proportions for Missing Information

Learn how to calculate unit prices and compare different products by using proportions to find the missing values in various rate problems.

wilma-mathis
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Solving Rate Problems Using Proportions for Missing Information

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  1. Rate Problems

  2. Use proportions to find the missing information. 75% of what number is 24? 60 is 20% of what number? What percent of 20 is 3? What percent of 85 is 68? What is 9% of 360? What is 25% of 18?

  3. Mike went to Kroger to buy some milk. He bought 2 gallons for $3.00. How much was one gallon? Jimmy and Charlene are both dance instructors. Jimmy charges $13.98 for two hours of instruction and Charlene charges $20.91 for three hours of instruction. Who has the best unit price per hour? Holly saw a 15 pound ham in Publix that cost $14.70. What is the unit price per pound for the ham? James went to the store to buy some soda. For 12 cans it would cost him $3.33. What is the unit price per can? (Round answer to nearest cent).

  4. Unit rate Which is a better deal? 8oz of shampoo for $0.99 or 12oz for $1.47? Which is a better deal: 3 cans of soda for $1.27 or 5 cans of soda for$1.79? Which is a better deal: 10 pounds of hamburger for $4.99 or 5 pounds of hamburger for $2.49?

  5. Unit rate Which is traveling faster: Traveling 300 miles in 5 hours or traveling 250 miles in 4 hours? Which is traveling faster? Traveling 75 miles in 1 hour or traveling 280 miles in 3.5 hours? Which is traveling faster: Traveling 150 yards in 40 seconds or traveling 406 feet in 35 seconds?

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