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Chapter 5 Rates Unit Rates Speed Problem #1 • Cinnamon Toast Crunch costs $4.20 for a 14 ounce box. Fruit Loops costs $3.90 for a 12 ounce box. Which cereal is the better buy? Problem #2 • Ms. Lieber takes 4 hours to drive 210 miles from her home to Yosemite National Park. If Ms. Lieber’s average speed for the first two hours is 60 miles per hour, find her average speed for the last two hours. Problem #3 • A fax machine can transmit 48 pages in 6 minutes. A) How many pages can the fax machine transmit per minute? B) How many pages can the fax machine transmit in 10 minutes? Problem #4 • Megan earns $9.50 per hour working at a day care. A) How much will Megan earn if she works 4 hours? B) How many hours will Megan have to work to earn $57? • Use the table: Problem #5 Fruit Amount Paid Amount Purchased Grapefruit $11.67 15 lb Rhubarb $14.97 3 lb Cherries $11.98 2 lb Cost Per Pound A) Which type of fruit costs the most per pound? B) What is the price difference per pound between the most expensive fruit and the cheapest fruit? Problem #6 • Use the table: First Day (Monday – Friday) $65 Every Additional Day (Monday – Friday) $35 Weekend (Saturday and Sunday) $45 per day A) How much does it cost to rent a car for 3 weekdays? B) How much does it cost to rent a car on Tuesday and keep it for an entire week? Problem #7 • Michaela charges $6.50 per hour to babysit. How much would she earn in 12 hours? Problem #8 • The drama club mixes paint needed for scenery. To make green, the ratio is 2 pints of blue per 3 pints yellow. How much yellow paint is needed for 50 pints of blue paint? Problem #9 • Find the UNIT Rate: A) 120 eggs from 20 chickens B) $55 for 20 people C) 250 miles in 4 hours D) 60 feet in 4 minutes E) 48 books for 16 students F) 56 children from 14 families Problem #10 • Which is the BETTER Deal? A) 8 ounces of shampoo for 89 cents or 12 ounces for $1.47? B) 3 cans of soda for $1.27 or 5 cans of soda for $1.79? C) 10 pounds of hamburger for $4.99 or 5 pounds of hamburger for $2.69? Problem #11 • Winnie is considering two plans for paying for her piano lessons: A) $68.40 for 6 piano lessons B) $41.80 for 4 piano lessons For which plan will Winnie pay a lower fee per lesson? Problem #12 • A factory can assemble 150 cars in 3 hours. A) What is the unit rate of cars assembled per hour? B) At this rate, how many cars can be assembled in 8 hours? Problem #13 • At a school store, each notebook has the same price and each pencil has the same price. Katie bought 5 notebooks for $4.50 and 12 pencils for $3.00 from the store. At the same store, Dave bought 4 notebooks and 5 pencils. What was the total price of the items Dave bought? Problem #14 • A 5-pound bag of flour costs $4.80. For this bag of flour, what is the cost of flour per ounce? Problem #15 • The table below shows a partial price list for boxes of cookies. Each box of cookies costs the same amount of money. • Complete the table: