Ratios, Rates, and Unit Rate

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

A ​ (a)   is a type of ratio that compares quantities with different units of measure. Such as comparing miles and minutes or dollars and hours. A ​ (b)   is a comparison to ONE unit, such as miles per minute or dollars per hour. To solve any unit rate problem, you must determine the amount for 1.

• rate

• unit rate

Find each unit rate. Round your answer to the nearest hundredth:​ (a)   11 chickens lay 77 eggs _________eggs per chicken

• 7

• 22

• 30

• 10

Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

11 chickens lay 77 eggs _________eggs per chicken

• 7

• 22

• 30

• 10

irections: Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

7 penguins for $126.00 ________ each

• $18

• $24

• $4

• $10

Match the following vocabulary terms to their definitions.

• unit rate

• a comparison of two quantities with units

• ratio

• comparison of two quantitities

• rate

• a comparison of two quantities with units when the quantity in the denominator is 1

Tags

CCSS.7.RP.A.1

Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour

• $1 in 18 hours

• $90:5h

• 5 to 90