EXERCISE 15.3B 1 In a survey of 100 cars, 47 were white, 23 were blue and 30 were red. Express each of these numbers as a percentage of the total. 2 of the surface of the Earth is water. Express this as a percentage. 3 There are 200 birds in a flock. 120 of them are female. What percentage of the flock is: a) female b) male? percentages as fractions of 100. 4 Write these a) 73% b) 28% c) 10% 5 Write these fractions as percentages. 27 a) 100 b) 10 c) 50 6 Convert the following percentages to decimals. a) 39% d) 7% b) 47% e) 2% c) 83% f) 20% d) 25% d) 7 Convert the following decimals to percentages. a) 0.31 d) 0.05 b) 0.67 e) 0.2 c) 0.09 f) 0.75
EXERCISE 15.3B 1 In a survey of 100 cars, 47 were white, 23 were blue and 30 were red. Express each of these numbers as a percentage of the total. 2 of the surface of the Earth is water. Express this as a percentage. 3 There are 200 birds in a flock. 120 of them are female. What percentage of the flock is: a) female b) male? percentages as fractions of 100. 4 Write these a) 73% b) 28% c) 10% 5 Write these fractions as percentages. 27 a) 100 b) 10 c) 50 6 Convert the following percentages to decimals. a) 39% d) 7% b) 47% e) 2% c) 83% f) 20% d) 25% d) 7 Convert the following decimals to percentages. a) 0.31 d) 0.05 b) 0.67 e) 0.2 c) 0.09 f) 0.75
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Transcribed Image Text:EXERCISE 15.3B
1 In a survey of 100 cars, 47 were white, 23 were blue and 30 were red.
Express each of these numbers as a percentage of the total.
2 of the surface of the Earth is water. Express this as a percentage.
3 There are 200 birds in a flock. 120 of them are female. What percentage of
the flock is:
a) female
b) male?
percentages as fractions of 100.
4 Write these
a) 73%
b) 28%
c) 10%
5 Write these fractions as percentages.
27
a)
100
b) 10
c)
50
6 Convert the following percentages to decimals.
a) 39%
d) 7%
b) 47%
e) 2%
c) 83%
f) 20%
d) 25%
d)
7 Convert the following decimals to percentages.
a) 0.31
d) 0.05
b) 0.67
e) 0.2
c) 0.09
f) 0.75
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