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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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