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Mouthwash, size for or size for
The 50.7-ounce size costs $0.138 per ounce. The 33.8-ounce size costs $0.142 per ounce. The 50.7-ounce size is the better buy.
Toothpaste, ounce size for or size for
Breakfast cereal, ounces for or ounces for
The 18-ounce size costs $0.222 per ounce. The 14-ounce size costs $0.235 per ounce. The 18-ounce size is a better buy.
Breakfast Cereal, ounces for or ounces for
Ketchup, regular bottle for or squeeze bottle for
The regular bottle costs $0.075 per ounce. The squeeze bottle costs $0.069 per ounce. The squeeze bottle is a better buy.
Mayonnaise regular bottle for or squeeze bottle for
Cheese for lb. block or for lb. block
The half-pound block costs $6.78/lb, so the 1-lb. block is a better buy.
Candy for a lb. bag or for lb. of loose candy
Translate Phrases to Expressions with Fractions
In the following exercises, translate the English phrase into an algebraic expression.
feet per seconds
beats in minutes
minutes for dollars
the ratio of and
One elementary school in Ohio has students and teachers. Write the student-to-teacher ratio as a unit rate.
15.2 students per teacher
If the average American produces about pounds of paper trash per year How many pounds of paper trash does the average American produce each day? (Round to the nearest tenth of a pound.)
A popular fast food burger weighs ounces and contains calories, grams of fat, grams of carbohydrates, and grams of protein. Find the unit rate of ⓐ calories per ounce ⓑ grams of fat per ounce ⓒ grams of carbohydrates per ounce ⓓ grams of protein per ounce. Round to two decimal places.
A chocolate mocha coffee with whipped cream contains calories, grams of fat, grams of carbohydrates, and grams of protein. Find the unit rate of ⓐ calories per ounce ⓑ grams of fat per ounce ⓒ grams of carbohydrates per ounce ⓓ grams of protein per ounce.
Would you prefer the ratio of your income to your friend’s income to be or Explain your reasoning.
Answers will vary.
The parking lot at the airport charges for every minutes. ⓐ How much does it cost to park for hour? ⓑ Explain how you got your answer to part ⓐ . Was your reasoning based on the unit cost or did you use another method?
Kathryn ate a cup of frozen yogurt and then went for a swim. The frozen yogurt had calories. Swimming burns calories per hour. For how many minutes should Kathryn swim to burn off the calories in the frozen yogurt? Explain your reasoning.
Answers will vary.
Mollie had a cappuccino at her neighborhood coffee shop. The cappuccino had calories. If Mollie walks for one hour, she burns calories. For how many minutes must Mollie walk to burn off the calories in the cappuccino? Explain your reasoning.
ⓐ After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.
ⓑ After reviewing this checklist, what will you do to become confident for all objectives?
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