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

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

3. 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.

4. 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

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

6. 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

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

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

9. Comparing Unit Prices

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

11. 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.

12. Practice Time
Worksheet Review:
Page 38