Algebra House
  • Ask a Question
    • Answered Questions
  • Examples
  • State Test Practice
    • Algebra 1 State Test Practice
    • Geometry State Test Practice
  • ACT and SAT
  • Calculators
    • Problem Solver
    • Graphing Calculator
    • 3D Graphing Calculator
  • Contact
    • Contact Algebra House
    • Leave a Tip


​​ALGEBRA eXAMPLES

Find the length and width

7/25/2013

0 Comments

 
The perimeter of a rectangle if 68 feet. If the length is 8 feet more than the width, find both the length and width.  (Formula: P = 2L + 2W)

x = width
x + 8 = length
{the length is 8 more than the width} 
 
Perimeter of a rectangle is 2(width) + 2(length)

2x + 2(x + 8) = 68   {substituted expressions into perimeter formula}
2x + 2x + 16 = 68   {used distributive property}
4x + 16 = 68   {combined like terms}
4x = 52   {subtracted 16 from each side}
x = 13 ft width   {divided each side by 4}
 x + 8 = 21 ft length   {substituted 13, in for x, into x + 8}

width is 13 ft
length is 21 ft

- Algebra House

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.


    Ask a Question


    Algebra Examples Playlist


    Examples

    All
    All Word Problems
    Basic Math
    Combining Like Terms
    Distributive Property
    Equations Of Lines
    Exponents
    Factoring
    Foil Method
    Functions
    Geometry
    Graphing
    Imaginary Numbers
    Inequalities
    Linear Equations
    Literal Equations
    Miscellaneous
    Percents
    Pythagorean Theorem
    Quadratic Equations
    Radicals
    Simplifying
    Slopes And Intercepts
    Solving Equations
    System Of Equations
    Word Problems Age
    Word Problems Distance
    Word Problems Geometry
    Word Problems Integers
    Word Problems Misc.
    Word Problems Mixture
    Word Problems Money
    Word Problems Number



Algebra House
  • Ask a Question
    • Answered Questions
  • Examples
  • State Test Practice
    • Algebra 1 State Test Practice
    • Geometry State Test Practice
  • ACT and SAT
  • Calculators
    • Problem Solver
    • Graphing Calculator
    • 3D Graphing Calculator
  • Contact
    • Contact Algebra House
    • Leave a Tip