proportion practice #1. question a n x 6 question b n x 5
TRANSCRIPT
Proportion Practice #1
Question A
18
12
3
2
n
x 6
x 6
Question B
25
20
5
4
n
x 5
x 5
Question C
42
7
6
1
n
x 7
x 7
x 6 x 6
Question D
20
8
5
2
n
x 4
x 4
Question E
17
85
1
5
n
x 17
x 17
x 5 x 5
Question F
24
16
9
6
3
2
24
16
x 3
x 3
3
2
9
6
n
Question G
40
16
15
6
5
2
15
6
x 8
x 8
40
16
5
2
n
Question H
15
10
12
8
3
2
15
10
x 4
x 4
3
2
12
8
n
Question I
3 : 4 = 27 : 36
x 9
n
x 9
Question J
5 : 6 = 20 : 24
x 4
n
x 4
Question K
2 : 7 = 10 : 35
x 5
n
x 5
Question L
6 : 1 = 78 : 13
x 6
n
x 6
Question M
n : 8 = 21 : 28
x 2
x 2
6 : 8 = 3 : 4n
Question N
7 : 10 = 140 : 200
x 20
n
x 20
Question O
8 : 5 = 320 : 200
x 40
n
x 40
Question P
4 : 3 = 180 : 135
x 45
n
x 45
Write a proportion for each problem and solve it
Baseball player: 3 hits for every 8 times at bat.
How many hits for 96 times at bat?
96
36
8
3
batat
hits
n
x 12
x 12
Write a proportion for each problem and solve it
Car: 6 kilometres driven per litre of gasoline. How many kilometres driven on 37 litres?
37
222
1
6
litres
kilometres
n
x 6 x 6
Write a proportion for each problem and solve it
Basketball player: 7 free throws out of every 9 attempts. How many free throws in 135 attempts?
135
105
9
7
attempts
throwsfree
n
x 15
x 15
Write a proportion for each problem and solve it
Picnic: 2 hot dogs per person.How many hot dogs needed to feed 126 people?
126
252
1
2
person
dogshot
nx 2x 2
Write a proportion for each problem and solve it
Class: ratio of girls to boys is 7 to 9. If there are 56 girls how many boys are there?
72
56
9
7
boys
girls
n
x 8
x 8
Write a proportion for each problem and solve it
Population: ratio of City X to City Y is 6 to 5. If 3000 people live in City Y, how many in City X?
3000
3600
5
6
YCity
XCity
n
x 600
x 600
Write a proportion for each problem and solve it
Scale on map: 1cm = 35kmWhat is the actual distance if the distance on the map is 4.9cm?
5.171
9.4
35
1
km
cm
n
x 4.9
x 4.9
Write a proportion for each problem and solve it
Recipe: 5 grams salt per litre of water. How many grams of salt needed for 1 kilolitre of water?
1000
5000
1
5
L
g
n
x 1000
x 1000
Proportion Practice
Multiple Choice Set 13
Write a proportion for each problem and solve it
What value of x makes
the following proportion true?
20
5.7
8
3
x 2.5
x 2.5
Set 13
#1
Write a proportion for each problem and solve it
If the value of a in the proportion below is 2, what is the value of b?
10
5
4
2x 2
x 2
a
b
Set 13
#2
Write a proportion for each problem and solve it
77
5
88
16
5.5
1
88
16
176
32
88
16
All of the following values of x and y will make the proportion below true except which one?
x 5.5 x 5.5
Set 13
#3
22
4
88
16
y
x
88
16
Write a proportion for each problem and solve it
66
42
22
14
11
7
22
14
2.2
4.1
22
14
Name two sets of values for a and b that will make the proportion below true:
Set 13
#4
44
28
22
14
22
14
b
a
Write a proportion for each problem and solve it
If a flagpole that is 30 feet high casts a shadow 16 feet long,
what is the length of the shadow cast by a flagpole that is 36 feet high?
feet 51
19
feet 36
feet 16
feet 30
shadow ofheight
height actual
n
x 1.2
x 1.2
Set 13
#5
Write a proportion for each problem and solve it
A factory produces 54 widgets every half hour. At this rate, how long would it take to produce 405 widgets?
hours 43
3
feet 405
hours 21
feet 54
hours
widgetsof #
n
x 7.5
x 7.5
Set 13
#6
Write a proportion for each problem and solve it
In a 40-piece box of candy, 16 of the pieces contain nuts. At this rate, how many pieces of candy with nuts would be found in a 60-piece box?
60
24
40
16
candy of # total
nuts with #
n
x 1.5
x 1.5
Set 13
#7
Write a proportion for each problem and solve it
This morning it took May 20 minutes to read 16 pages of her book. If she plans to read for 2 hours before going to bed tonight, what is the best prediction for the number of pages she will read?
min120
pages 96
min 20
pages 16
minutes
pages
n
x 6
x 6
Set 13
#8
Write a proportion for each problem and solve it
If a dozen butter cookies cost $3, how much do 54 cookies cost?
54
50.13$
12
$3
cookies
$
nx 4
x 4
Set 13
#9
Write a proportion for each problem and solve it
John pays $0.78 for two feet of wire. When he gets home, he realizes that he needs 11 more yards of wire to finish his project. How much will it cost to buy this additional wire?
33
87.12$
2
$0.78
wireoffeet
$
n
x 16.5
x 16.5 Set 13
#10
1 yard = 3 feet
Proportion Practice
Multiple Choice Set 14 & 15
Finish and Hand in!