Unit 1 - Solving Life’s Problems
.pdf
keyboard_arrow_up
School
Santa Ana College *
*We aren’t endorsed by this school
Course
105
Subject
Mathematics
Date
Jun 11, 2024
Type
Pages
44
Uploaded by KidJaguarPerson82
Unit
1
:
Solving
I
Lifes
Problems
Lesson 1.1 Percents
Homework 1.1: Percents
Anthony Lopez
Chapter 1: Problem Solving
In previous math courses, you’ve no doubt run into the infamous “word problems.”
Unfortunately, these problems rarely resemble the type of problems we actually encounter in
everyday life. In math books, you usually are told exactly which formula or procedure to use,
and are given exactly the information you need to answer the question. In real life, problem
solving requires identifying an appropriate formula or procedure, and determining what
information you need (and won’t need) to answer the question.
1.1 Percents
Percent
literally means “per 100,” or “parts per hundred.” When we write 40%, this is
equivalent to the fraction 40/100 or the decimal 0.40. Notice that 80 out of 200 and 10 out
of 25 are also 40% since 80/200 = 0.40 and 10/25 = 0.40.
Ex 1: Convert a Fraction to a Decimal (terminating)
Ex 2: Convert a Fraction to a Decimal (terminating)
https://www.myopenmath.com/assess2/
?
cid=214538&aid=15169091#/print
2/20/24, 10
:
40 PM
Page 1 of 9
Question 1
0/10 pts
3
99
Question 2
0/10 pts
3
99
The fraction is equivalent to what percent?
%
Question Help: 33
50
33
50
=
Q
Video
1
Convert to a percent
%
4
2
5
Percent Intro and Basic Percent, Fraction, Decimal Convers
…
https://www.myopenmath.com/assess2/
?
cid=214538&aid=15169091#/print
2/20/24, 10
:
40 PM
Page 2 of 9
0
.
66
·
100
=
66
%
e
.
20
40
4
-
4-
4
.
4
5
5
20
100
440
Question 3
0/10 pts
3
99
Question 4
0/10 pts
3
99
Question 5
0/10 pts
3
99
4.7% is equivalent to what fraction in reduced terms?
Convert % to a decimal.
Question Help: 3
4
Q
Video
1
https://www.myopenmath.com/assess2/
?
cid=214538&aid=15169091#/print
2/20/24, 10
:
40 PM
Page 3 of 9
4
.
7
%
=
right
answer
was
-How
?
%=
05
=
0
.
00
0
.
0075
Question 6
0/10 pts
3
99
Employees in 2012 paid 4.2% of their gross wages towards social security (FICA tax), while
employers paid another 6.2%. How much will someone earning $52,000 a year pay towards
social security out of their gross wages?
$
Give your answer accurate to at least the nearest dollar.
Question Help: Q
Video
1
Ex: Change, Absolute Change, and Relative Change
https://www.myopenmath.com/assess2/
?
cid=214538&aid=15169091#/print
2/20/24, 10
:
40 PM
Page 4 of 9
part
=%
whole
x
=
52
,
000
(4
.
2
%
)
2
, 184
X
=
52000(0
.
042)
X
=
$
2
,
184
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help