DashboardNewsSettingsHelp
Get Premium
Dashboard
Dashboard Sign out
Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
9. Percents
Continue to next subchapter

Exercise 15 Page 141

Use the percent proportion.

36

Practice makes perfect

In the percent proportion, the ratio of the part a to the whole b is equal to the percent p written as a fraction. a/b=p/100 Given any two of these three variables, we can find the third one. In this exercise, we are given the values p= 25 and b= 144, and we are looking for the value of a.

a/b=p/100
SubstituteII

b= 144, p= 25

a/144=25/100
ReduceFrac

a/b=.a /25./.b /25.

a/144=1/4
MultEqn

LHS * 144=RHS* 144

a=1/4*144
MoveRightFacToNumOne

1/b* a = a/b

a=144/4
CalcQuot

Calculate quotient

a=36

This means that 36 is 25 % of 144.

Subchapter links expand_more
arrow_right Lesson Check p.141
1
Lesson Check 2 (Page 141)
Lesson Check 3 (Page 141)
Lesson Check 4 (Page 141)
5
6
7
8
arrow_right Practice and Problem-Solving Exercises p.141-143
Practice and Problem-Solving Exercises 9 (Page 141)
Practice and Problem-Solving Exercises 10 (Page 141)
Practice and Problem-Solving Exercises 11 (Page 141)
Practice and Problem-Solving Exercises 12 (Page 141)
Practice and Problem-Solving Exercises 13 (Page 141)
Practice and Problem-Solving Exercises 14 (Page 141)
Practice and Problem-Solving Exercises 15 (Page 141)
Practice and Problem-Solving Exercises 16 (Page 141)
Practice and Problem-Solving Exercises 17 (Page 141)
Practice and Problem-Solving Exercises 18 (Page 141)
Practice and Problem-Solving Exercises 19 (Page 141)
Practice and Problem-Solving Exercises 20 (Page 141)
21
22
Practice and Problem-Solving Exercises 23 (Page 141)
Practice and Problem-Solving Exercises 24 (Page 141)
Practice and Problem-Solving Exercises 25 (Page 141)
Practice and Problem-Solving Exercises 26 (Page 141)
Practice and Problem-Solving Exercises 27 (Page 141)
Practice and Problem-Solving Exercises 28 (Page 141)
29
30
Practice and Problem-Solving Exercises 31 (Page 142)
Practice and Problem-Solving Exercises 32 (Page 142)
Practice and Problem-Solving Exercises 33 (Page 142)
Practice and Problem-Solving Exercises 34 (Page 142)
Practice and Problem-Solving Exercises 35 (Page 142)
Practice and Problem-Solving Exercises 36 (Page 142)
37
38
39
Practice and Problem-Solving Exercises 40 (Page 142)
Practice and Problem-Solving Exercises 41 (Page 142)
42
43
44
Practice and Problem-Solving Exercises 45 (Page 142)
46
47
48
49
50
51
52
53
arrow_right Standardized Test Prep p.143
54
55
56
arrow_right Mixed Review p.143
57
58
Mixed Review 59 (Page 143)
Mixed Review 60 (Page 143)
Mixed Review 61 (Page 143)
Mixed Review 62 (Page 143)