Ratio Sponge Page 43 Find the following ratios THREE WAYS:

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Presentation transcript:

Ratio Sponge Page 43 Find the following ratios THREE WAYS: Pizza to coke 2) Pizza to total 3) Cupcakes AND coke bottles to pizza 4) Total to cupcakes 5) Cupcakes to all other food 6) Coke to total 7) Soda to cupcakes AND pizza 8) Coke to Pizza

Unit Rates PAGE 44 Notes: Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5

Vocabulary A ratio is a comparison of two quantities by division. 17 out of 20 students, or A rate is a special type of ratio comparing two quantities with different units. Driving 120 miles in 2 hours, or A unit rate is a rate that is simplified so that it has a denominator of 1 unit.

Rate Examples (more than 1) 250 words in 5 minutes 92 pages read in 8 minutes 225 miles in 5 hours $3.25 for 5 bananas Unit Rate Examples (only 1) 50 words per minute 11.5 pages per minute 45 miles per hour $0.35/banana

Example #1 Rate: 150 heartbeats 2 minutes Find Unit Rate (Divide to get it): 150 ÷ 2 = 75 heartbeats per minute.

REMEMBER ONCE YOU HAVE A UNIT RATE YOU WILL BE ABLE TO MULTIPLY BY ANY NUMBER TO FIND ANOTHER VALUE. EXAMPLE YOU CAN TYPE 50 WORDS PER MINUTE. HOW MANY WORDS CAN YOU TYPE IN 6 MINUTES…… 50 X 6 = 300

Example #2 Amy can read 88 pages in 4 hours. What is the unit rate? 22 pages / hour 4 hours

Example #3 Marlo divided 40.8 gallons of paint among 8 containers. How much paint is in each container? Rate: Unit Rate:

Comparing Unit Prices

Example #4 The Reyes family bought four tickets for $252. What was the price per ticket?

Example #5 Juice is sold in one size. A 28-fluid ounce bottle costs $2.24. $2.24 0.08 $.08 per fl.oz. 28 fl.oz.

Practice Time Worksheet Review: Page 38