Rates

Warm Up Exercise What is the ratio of balloons to party hats in word form? What is the ratio of party hats to total number of party items in ratio (colon) form? What type of ratio is the previous question?

Warm Up Exercise What is the ratio of balloons to party hats in word form? 6 to 7 What is the ratio of party hats to total number of party items in ratio (colon) form? What type of ratio is the previous question?

Warm Up Exercise What is the ratio of balloons to party hats in word form? 6 to 7 What is the ratio of party hats to total number of party items in ratio (colon) form? 7:13 What type of ratio is the previous question?

Warm Up Exercise What is the ratio of balloons to party hats in word form? 6 to 7 What is the ratio of party hats to total number of party items in ratio (colon) form? 7:13 What type of ratio is the previous question? Part to whole

We can use rates to compare quantities Lesson Objective We can use rates to compare quantities

Rates A rate is a comparison of two quantities that have different units

Rates The ratio of goldfish to gallons of water is 7 to 2. For every goldfish, there are gallons of water. You are taking a test in science. There are 20 questions and 45 minutes. For every questions, you have minutes. The price of apples is 3 for $2.00. For every apples, you pay .

Rates The ratio of goldfish to gallons of water is 7 to 2. For every 7 goldfish, there are 2 gallons of water. You are taking a test in science. There are 20 questions and 45 minutes. For every questions, you have minutes. The price of apples is 3 for $2.00. For every apples, you pay .

Rates The ratio of goldfish to gallons of water is 7 to 2. For every 7 goldfish, there are 2 gallons of water. You are taking a test in science. There are 20 questions and 45 minutes. For every 20 questions, you have 45 minutes. The price of apples is 3 for $2.00. For every apples, you pay .

Rates The ratio of goldfish to gallons of water is 7 to 2. For every 7 goldfish, there are 2 gallons of water. You are taking a test in science. There are 20 questions and 45 minutes. For every 20 questions, you have 45 minutes. The price of apples is 3 for $2.00. For every 3 apples, you pay $2.00.

Rates A unit rate is a rate in which the second quantity is one unit. When the first quantity in a unit rate is an amount of money, the unit rate is sometimes called a unit price or unit cost.

Rates A unit rate is a rate in which the second quantity is one unit. When the first quantity in a unit rate is an amount of money, the unit rate is sometimes called a unit price or unit cost. Example: A cruise ship travels 20 miles in 50 minutes. How far does the ship travel per minute?

Rates A unit rate is a rate in which the second quantity is one unit. When the first quantity in a unit rate is an amount of money, the unit rate is sometimes called a unit price or unit cost. Example: A cruise ship travels 20 miles in 50 minutes. How far does the ship travel per minute? 20 miles/50 minutes

Rates A unit rate is a rate in which the second quantity is one unit. When the first quantity in a unit rate is an amount of money, the unit rate is sometimes called a unit price or unit cost. Example: A cruise ship travels 20 miles in 50 minutes. How far does the ship travel per minute? 20 miles/50 minutes = 0.4 miles per minute

Rates The cost of 2 cartons of milk is $5.50. What is the unit price? 5.50 ÷ 2 = $2.75 per carton of milk Gerald pays $90 for 6 yoga classes. What is the cost per class? Lisa walked 48 blocks in 3 hours. How many blocks did she walk per hour? Gordon types 1,800 words in 25 minutes. How many words does he type per minute?

Rates The cost of 2 cartons of milk is $5.50. What is the unit price? 5.50 ÷ 2 = $2.75 per carton of milk Gerald pays $90 for 6 yoga classes. What is the cost per class? $90 ÷ 6 = $15 per class Lisa walked 48 blocks in 3 hours. How many blocks did she walk per hour? Gordon types 1,800 words in 25 minutes. How many words does he type per minute?

Rates The cost of 2 cartons of milk is $5.50. What is the unit price? 5.50 ÷ 2 = $2.75 per carton of milk Gerald pays $90 for 6 yoga classes. What is the cost per class? $90 ÷ 6 = $15 per class Lisa walked 48 blocks in 3 hours. How many blocks did she walk per hour? 48 blocks ÷ 3 hours = 16 blocks per hour Gordon types 1,800 words in 25 minutes. How many words does he type per minute?

Rates The cost of 2 cartons of milk is $5.50. What is the unit price? 5.50 ÷ 2 = $2.75 per carton of milk Gerald pays $90 for 6 yoga classes. What is the cost per class? $90 ÷ 6 = $15 per class Lisa walked 48 blocks in 3 hours. How many blocks did she walk per hour? 48 blocks ÷ 3 hours = 16 blocks per hour Gordon types 1,800 words in 25 minutes. How many words does he type per minute? 1800 words ÷ 25 minutes = 72 words per minute

Rates Rates study jams: http://studyjams.scholastic.com/studyjams/jams/math/algebra/rate.htm