Rates and Unit RatesRates and Unit Rates with Proportional with Proportional

ReasoningReasoning

Rate – is a ratio that compares two Rate – is a ratio that compares two quantities measured in quantities measured in

DIFFERENT UNITSDIFFERENT UNITS

50 minutes & 2 miles 50 minutes & 2 miles 450 miles &15 gallons 450 miles &15 gallons 120 words & 5 minutes120 words & 5 minutes 50 yards & 42 seconds50 yards & 42 seconds

50 minutes/2mile50 minutes/2mile 450 miles/15gallon450 miles/15gallon 120 words/5minute120 words/5minute 50 yards/42 secs50 yards/42 secs

Unit rate - is a rate that has a Unit rate - is a rate that has a denominator of 1denominator of 1

340 miles - 20 gallons340 miles - 20 gallons

$350 – 35 hrs$350 – 35 hrs

1,500 miles – 25 hrs1,500 miles – 25 hrs

$210 – 50 ounces$210 – 50 ounces

17 miles/gal17 miles/gal

$10 /hr$10 /hr

60 miles/hr60 miles/hr

$4.20 / oz$4.20 / oz

Determine The Better BuyDetermine The Better Buy

JuiceJuice

18 oz for $1.2618 oz for $1.26

8 oz for $.708 oz for $.70

ClothCloth

2 yd for $3.152 yd for $3.15

6 yd for $7.786 yd for $7.78

JuiceJuice

1.26/18= $.07 per oz1.26/18= $.07 per oz

.70/8 = $.0875 per oz.70/8 = $.0875 per oz

ClothCloth

3.15 / 2 = $1.575 per yd3.15 / 2 = $1.575 per yd

7.78 / 6 = $1.296 per yd7.78 / 6 = $1.296 per yd

Determine The Better BuyDetermine The Better Buy

SocksSocks

2 pair for $2.992 pair for $2.99

6 pair for $9.976 pair for $9.97

CerealCereal

10.2 oz for $5.9810.2 oz for $5.98

16 oz for $9.9516 oz for $9.95

SocksSocks

2.99/2 =$1.49 per pair2.99/2 =$1.49 per pair

9.97 / 6 =$1.67 per pair9.97 / 6 =$1.67 per pair

CerealCereal

5.98 / 10.2 =$.58 per oz5.98 / 10.2 =$.58 per oz

9.95 /16 = $.62 per oz9.95 /16 = $.62 per oz