Write the ration as a fraction in simplest form.
15 girls to 6 boys
What is 5 girls to 2 boys
100
Write the ration as a fraction in simplest form.
24 players : 3 teams
What is 8 players : 1 team
100
Find the Unit Rate:
405 rotations in 5 minutes
What is 81 rotations / minute
100
Find the Unit rate:
72 ounces for 12 servings
What is 6 ounces per serving
100
Tell whether the ratio forms a proportion.
8 5
-- --
24 15
What is Yes it does form a proporton
200
Tell whether the ratios form a proportion:
3 12
-- --
7 21
What is No they do NOT form a proportion
200
Are the rates proportional?
Messages Cost
50 $6
75 $9
100 $12
What is Yes they are all $0.12 per message
200
Are X and Y in a proportional relationship? Graph it!
X 2 3 6 8
Y 1 2 3 4
What is Yes they are!
200
Are X and Y in a proportional relationship? Graph it!
X 3 6 9 12
Y 7 13 19 25
What is NO they are not!
200
You can buy 5 stickers for $3. Write a proportion that fives the cost C if you buy 12 stickers.
What is $3 C
-- = --
5 12
300
Solve the proportion:
2 N
-- = --
3 12
What is N=8
300
Solve the proportion:
33 3
-- = --
P 28
What is P = 308
300
Solve the proportion:
K 15
-- = --
6 18
What is K = 5
300
Solve the proportion:
2 3
-- = --
3 Q
What is Q = 4.5
300
Find the slope
(0,0) (3,2)
What is 2/3
400
Find the slope
(4,4) (8,8)
What is 1
400
Does this table show direct variation? Graph it !
X 1 2 3 4
Y 4 8 12 16
What is Yes, it passes thru the origin
400
Tell whether X and Y show direct variation. Explain.
Solve for Y
y + x = 1
What is No the equation isn't in the form y = Kx
400
Tell whether X and Y show direct variation:
y 2
-- = --
7 X
What is y = 14
-- No it does NOT
x
400
Your base ball team has won 6 games and lost 4 games.
If the team does not lose any more games, how many games must the team win to have a win:loss ratio of 2:1 ? Explain
What is They Need to win 2 more games so that their record is 8:4.
500
It costs $145 for 10 people to attend a concert. How much does it cost a group of 8 people?
What is $116
500
Find the slope:
(50, 400) (30, 240)
What is 8
500
Find the slope:
(6, 360) (20, 120)
What is 6
500
Tell whether x and y show direct variation:
xy - 11 = 5
What is NO
y = 16/x
500
Tell whether x and y show direct variation:
Y
-- = 8
x