Topic 7 Percentages With Answer Key - Math Quest 7 Page 19
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40number and algebra
Find the following by converting the percentage to a decimal.
7
24% of 30
12% of 14.5
33% of 71.3
18% of 12.2
a
b
c
d
67% of 18.1
28% of 39.6
19% of 61.7
42% of 42.3
e
f
g
h
8% of 13.4
63% of 105.6
17% of 192.4
33% of 982.3
i
j
k
l
1
53% of 507.1
75% of 146.85
12
% of 9.95
m
n
o
2
Evaluate each of the following by converting the percentage to a decimal.
8
WE12c
3.2% of 14.5
12.8% of 22
9.4% of 56
23.1% of 97
a
b
c
d
1.7% of 160
19.8% of 88
14.1% of 27.5
17.3% of 176.9
e
f
g
h
4.6% of 257.25
57.2% of 500
98.3% of 4500
33.3% of 2800
i
j
k
l
84.1% of 45.50
68.5% of 19.95
24.5% of 360
m
n
o
7% of 20 equals:
9
a
MC
35
1.4
3.5
14
2.86
a
b
C
d
e
4.2% of 160 equals:
b
67.2
67 200
672
0.672
6.72
a
b
C
d
e
63.5% of 12 equals:
c
76.20
1.905
7.660
7.620
19.05
a
b
C
d
e
13% of 51.4 equals:
d
2.056
66.82
6.682
20.56
668.2
a
b
C
d
e
Digital doc
A thunder day at a given location is a calendar day
10
WE13
Spreadsheet
on which thunder is heard at least once. About 20% of days
Calculating
percentages
near Darwin are thunder days. How many days in one year
doc-1912
are thunder days?
underSTandIng
Two per cent of Australians play lawn bowls. In a
11
group of 50 people, how many would you expect to
play lawn bowls?
Two thousand people entered a marathon. Some walked and
12
the rest jogged. If 20% walked:
what percentage jogged?
how many people jogged?
a
b
262
Maths Quest 7
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