4.1  –  Ratios  &  Unit  Rates  Directions:  Use  the  video  lesson  to  fill  in  the  highlighted  blanks  below.  

 

A rate is a type of ratio that compares 2 different _____________. (Ex. $ and time, $ and weight, distance

and time, etc.)

A unit rate is a where one quantity is always being compared to ______ of another quantity.

(i.e. the denominator is 1)

How  much  would  7  pounds  of  ham  cost?                          

A _____

                                             

                                                           

Name:  ________________________________  

________

__________

 

   What  would  the  cost  of  11  apples  be?                            

Which is the better unit rate? Find the unit rate to compare. Store A charges $ 1.60 for four melons The unit price is ____________

Store B charges $ 2.70 for nine melons The unit price is ____________

Which store has the better deal? _________________

How much would you save if you bought 20 melons? __________

Equivalent ratios look different but they are actually the ______________ value.

                                Do  movies  shot  Cinemascope  have  the  same  ratio  as  the  HDTV’s?    Yes  or  No?  

                 Do  movies  shot  Cinemascope  have  the  same  ratio  as  the  HDTV’s?    Yes  or  No?    

             

 

HDTV’s   Ratio   Unit  Ratio  

 

   

   

 

 

   

 

 

 

   

 

 

32  Inch  TV  

Projector  

Phone  

4.1  Practice  &  Application  Problems    

 1. Match the vocabulary to its correct definition.

 Vocabulary:                 Definition  

 a) Ratio         __________      Fractions  that  divide  or  reduce  to  the  same  number  b) Rate         __________      A  comparison  of  two  quantities  c) Unit  Rate       __________      A  ratio  that  compares  two  different  units  d) Equivalent  Ratios     __________      A  rate  where  the  denominator  is  1  

     

2. Express the ratio 3 to 4 in two other ways.

3. Simplify the ratio 1215

. Then express the ratio in two other ways.

4. Which ratio is different from the others? 6.

7.

8. Seasonings are often added to meat prior to grilling. Using the recipe, write the following recipes as a fraction in simplest form. Then write expression of the ratio in two other ways.

Example:

I. pepper: garlic powder

II. oregano: pepper

9. A class of 24 students has 15 boys. Find the ratio that compares the number of girls to boys in the class?

       10.    Nkdhfj  

             

11. Jay takes 3 hours to deliver 189 newspapers on his paper route. What is the rate per hour at which he delivers the newspaper?

12. Patrick drives 825 miles to California. The trip takes him 17 hours. He uses 38 gallons

of gas on the trip, which costs him $125.

I. Find his speed.

II. Find his gas mileage.

III. Find the unit price he paid for gas.

13. Which Is The Best Value? – Find the unit price for each container of blueberries. 14. Which Is The Best Value? - Find the unit

price for each of the Advil container.

15. Paint is sold by the quart or gallon (4 quarts equals 1 gallon).

a) What is the unit cost (Price per quart) of each paint can?

b) Which is the better value?

   

100  ct  

300  ct  

16. What is the unit price for each of the battery containers below?

Which one is the better value?

17. Which of the four options below give you the best value for Acetamin?

18. A) B)

19. Ricky bought 3 pairs of jeans for $71.40. How much would he need to pay for 8 pairs of jeans?

Unit rate $________per pair

Cost for 8 pairs ______

20. Jhgh

21. bn

22. If one can of apple juice is missing how much should the clerk charge you?

23. If five eggs are missing how much should the clerk charge you?

24. If one can of soda is missing how much should the clerk charge you?

25.

26. POPULATION – Use the information at the right. What is the

population density or number of people per square mile in North Carolina?

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