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Ch 5 TEST ratios, rates, similar triangles
Contribué par: Harkenrider
1. 15 girls to 6 boys
2.     24 players: 3 teams
3. Find the unit rate.
405 rotations in 5 minutes
rotations per minute
4. Find the unit rate.
72 ounces for 12 servings
ounces per serving
5.          8/24,   5/15
 yes they are proportional
no they are not proportional
6.          5/8,   42.5/68  
 yes they are proportional
no they are not proportional
7.    
Tell whether x and y are proportional.
 no they are notproportional
yes they are proportional
8.    
Tell whether x and y are proportional.
yes they are proportional
 no they are not proportional
9.    
Tell whether the rates are proportional.
yes they are proportional
 no they are not proportional
10. 
=
11. 
=
12.  You can buy 5 stickers for $3. Write a proportion
that gives the cost c if you buy 12 stickers.
=
c
13.
n = 
2   =   n
3       12
14.
p = 
33  =  3
p       28
15.
k=
k  =  15
6      18
16.
q = 
2 = 3
3    q
17.  
It costs $145 for 10 people to attend a concert. 
How much does it cost a group of 8 people?
$
18.  
How many quarts are in 12 gallons?
4 quarts = 1 gal
quarts
19. How many tons are in 160,000 pounds?
1 ton = 2000 pounds
tons
20.          Use ratios to determine whether the triangles are similar.
similar
not similar
21.
(check all three sides)
Use ratios to determine whether the triangles are similar.

similar
not similar
22. 
The two triangles are similar. Find x.
x= 
23. 
The two triangles are similar. Find x.
x = 
24. 

A water tower casts a shadow that is 21 ft. long.        

       A 10 ft. tall tree casts a shadow that is 8 ft. long. 
What is the height of the water tower?

ft
25. 

Lilia uses 5 cups of flour to make 25 cookies. 

How many cookies can she make with 11

cups of flour?

X =
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