Ratios
Proportions
Unit Rates
Real World Ratios
Clueless
100
____:48=1:2
24:48=1:2
100
1/7=x/49
What is x?
7
100
Alex can run 36 miles in 3 hours. What is his average speed in miles per hour?
12 miles per hour
100
What is 20% of $5?
$1.00
100
Exponent:
7 x 7 x 7=343
200
Name the three different ratios.
-Part to Whole
-Whole to Part
-Part to Part
200
Is the proportion true or false? Explain.
False, because 30/35 reduces to 5/7 and 18/42 reduces to 3/7.
200
1 bag of chips costs $3. 5 bags of chips costs $10. Which one is a better buy?
5 bags of chips for $10 because you are getting one bag of chip for $2.
200
There is a classroom of 24 students. 50% are boys and the remaing are girls. What is the ratio of girls to the entire class? (Simplest Form)
1:2
200
314.56 + 219.6
534.16
300
Write the ratio 2:3 as a fraction, decimal, and percent.
2/3
.666667
66%
300
What is y?
6
300
A 16 oz package of white rice costs 79 cents and 32 oz package of white rice costs $3.49.
Which package is a better deal?
16 oz package of white rice costs 79 cents because you can buy two packages of white rice which will equal 32 oz and the cost will be $1.58.
300
Mrs.Robinson-Scott's class visits the zoo. Ana says that the ratio of lions to seals is 3/4. However, Dawan describes the relationship of lions to seals as 12/16. Are they both correct? Explain
Yes, they are both correct. The fraction 12/16 and 3/4 are equivalent. 12/16 can be reduced to its simplest form as 3/4.
300
7 + (6 × 52 + 3)
7 + ( 6 x 25 + 3)
7 + (150 + 3)
7 + (153)
160
400
Double Jeopardy
What are three different ways you can write ratios and give EQUAL examples of each?
Colon 2:3
To 2 to 3
Fraction 2/3
400
Your friend says that because the ratio of nickel to copper is 1/3, the alloy is about 33% nickel. Is your friend correct?
Yes, because 1/3 is equivalent to 33%.
400
.36 cents per lemon
.36 x 9= $3.24
400
Suppose we have 36 pancakes for 12 people. How would you change the recipe to make pancakes for 6 people?
18 pancakes
400
A number less than 24
x-24
500
The ratio of the number of 6th graders to the total number of students at Georgetown Middle School is .25. Write the ratio .25 as a fraction in simplest form.
1/4
500
Double Jeopardy
If one out of ten people vote, then in a town with two hundred people, how many will vote?
20
500
What is the simplest form of 49/56?
7/8
500
The famous chef's gumbo recipe uses a total of 21 pounds of celery and onions. The ratio of pounds of celery to pounds of onions is 2:5. How many pounds of celery and how many pounds of onions are in the soup? *Hint add 2 and 5*
500
Double Jeopardy
Simplify:
7x+9x+2
16x+2