DashboardNewsSettingsHelp
Get Premium
Dashboard
Dashboard Sign out
Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
1. Rate of Change and Slope
Continue to next subchapter

Exercise 71 Page 300

We can solve for the variable by using the Cross Products Property.

n=20

Practice makes perfect

To solve the proportion, we will use the Cross Products Property.

- 4/9=n/- 45
CrossMult

Cross multiply

- 4* (- 45)=9* n
MultNegNegOnePar

- a(- b)=a* b

180=9n
DivEqn

.LHS /9.=.RHS /9.

20=n
RearrangeEqn

Rearrange equation

n=20

Therefore, the solution to the given equation is n=20.

Subchapter links expand_more
arrow_right Lesson Check p.297
1
2
Lesson Check 3 (Page 297)
4
5
Lesson Check 6 (Page 297)
7
arrow_right Practice and Problem-Solving Exercises p.298-300
8
9
10
Practice and Problem-Solving Exercises 11 (Page 298)
Practice and Problem-Solving Exercises 12 (Page 298)
Practice and Problem-Solving Exercises 13 (Page 298)
Practice and Problem-Solving Exercises 14 (Page 298)
Practice and Problem-Solving Exercises 15 (Page 298)
Practice and Problem-Solving Exercises 16 (Page 298)
Practice and Problem-Solving Exercises 17 (Page 298)
Practice and Problem-Solving Exercises 18 (Page 298)
Practice and Problem-Solving Exercises 19 (Page 298)
Practice and Problem-Solving Exercises 20 (Page 298)
Practice and Problem-Solving Exercises 21 (Page 298)
Practice and Problem-Solving Exercises 22 (Page 298)
Practice and Problem-Solving Exercises 23 (Page 298)
Practice and Problem-Solving Exercises 24 (Page 298)
Practice and Problem-Solving Exercises 25 (Page 298)
26
27
28
29
30
31
32
33
Practice and Problem-Solving Exercises 34 (Page 299)
Practice and Problem-Solving Exercises 35 (Page 299)
Practice and Problem-Solving Exercises 36 (Page 299)
Practice and Problem-Solving Exercises 37 (Page 299)
Practice and Problem-Solving Exercises 38 (Page 299)
39
40
41
Practice and Problem-Solving Exercises 42 (Page 299)
Practice and Problem-Solving Exercises 43 (Page 299)
Practice and Problem-Solving Exercises 44 (Page 299)
Practice and Problem-Solving Exercises 45 (Page 299)
Practice and Problem-Solving Exercises 46 (Page 299)
Practice and Problem-Solving Exercises 47 (Page 299)
48
Practice and Problem-Solving Exercises 49 (Page 300)
50
Practice and Problem-Solving Exercises 51 (Page 300)
Practice and Problem-Solving Exercises 52 (Page 300)
Practice and Problem-Solving Exercises 53 (Page 300)
Practice and Problem-Solving Exercises 54 (Page 300)
Practice and Problem-Solving Exercises 55 (Page 300)
56
57
58
arrow_right Standardized Test Prep p.300
59
60
Standardized Test Prep 61 (Page 300)
arrow_right Mixed Review p.300
Mixed Review 62 (Page 300)
Mixed Review 63 (Page 300)
Mixed Review 64 (Page 300)
Mixed Review 65 (Page 300)
Mixed Review 66 (Page 300)
Mixed Review 67 (Page 300)
Mixed Review 68 (Page 300)
Mixed Review 69 (Page 300)
Mixed Review 70 (Page 300)
Mixed Review 71 (Page 300)
Mixed Review 72 (Page 300)
Mixed Review 73 (Page 300)
Mixed Review 74 (Page 300)