# 4.1 notes - Sections 4.1 Ratios Our Goals For today Find a...

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Sections 4.1 Ratios

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Our Goals For today Find a Unit Rate Convert Units
Practice: Simplify the fractions 84 49 42 24 180 135 14 40 25 35 88 96 144 99

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Ratio RATIO: a comparison of two numbers. Can be written as: A to B A:B b a
Unit Rate A UNIT RATE is a ratio with a denominator of 1 Practice: Find the unit rate. (the cost per item, cost per ounce, etc.) Apple juice costs \$1.56 for 48 oz Step 1: Write as a fraction Step 2: Make the denominator (the bottom number) 1 Milk costs \$2.65 for 32 oz

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Chips cost \$1.75 for 16oz Lindsay biked 27 miles in 3 hours
Rate Conversions: RATE CONVERSIONS: To do rate conversions, we need to cross cancel. So let’s practice: lb oz 1 16 = m cm 1 100 = gal qts 1 4 = cm mm 1 10 = mi ft 1 5280 = m mm 1 1000 = ft in 1 12 = km m 1 1000 = min 1 sec 60 = hr 1 min 60 = 3 8 4 3 3 16 16 7 3 16 16 7 feet miles hours feet day utes utes onds

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## This note was uploaded on 05/16/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State.

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4.1 notes - Sections 4.1 Ratios Our Goals For today Find a...

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