Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginningalgebra lesson on word problems (or applications) with equations of rational expressions. If you like math, and you like English, than what's the problem?
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Learn Calculus in 20 minutes

How To: Convert Fahrenheit to Celsius with a formula

How To: Normalize a data set into another scale

How To: Evaluate combinations of functions from graphs

How To: Find a number given Its percent

How To: Do long division without a calculator

How To: Find the area & perimeter of triangles & squares

How To: Find the Radius of a Circle from Arc Length

How To: Solve percentages without a calculator

How To: Find the slope of a line given 2 points with fractions

How To: Find a missing coordinate given: coordinate & equation

How To: Solve problems involving rational equations in algebra

How To: Find a missing side of a triangle, similar to another

How To: Translate a sentence into math symbols

How To: Figure out the domain & range of a piecewise function

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Learn Calculus in 20 minutes

How To: Convert Fahrenheit to Celsius with a formula

How To: Normalize a data set into another scale

How To: Evaluate combinations of functions from graphs

How To: Find a number given Its percent

How To: Do long division without a calculator

How To: Find the area & perimeter of triangles & squares

How To: Find the Radius of a Circle from Arc Length

How To: Solve percentages without a calculator

How To: Find the slope of a line given 2 points with fractions

How To: Find a missing coordinate given: coordinate & equation

How To: Solve problems involving rational equations in algebra

How To: Find a missing side of a triangle, similar to another

How To: Translate a sentence into math symbols

How To: Figure out the domain & range of a piecewise function

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle
1 Comment
I need help with my home work, is 1 am and still dont get it, please please help me with Simplifying rational expressions?
1) 5/2x
3) x/x8
5) 3/15x20
Problem 7.2,
3) 1+2/9
9) x^2+9x+14/x+7*x/x+2
37) 15/x/3/2x
Problem 7.3,
1) 7x/13+2x/13
3) 8x/15+x/15
55) 3x/x72x5/7x
Problem 7.4
1) 7/15x^2+13/24x
3) 8/15x^2+5/6x^5
5) 4/x3+7/x+1
Problem 7.5, (1; 5; 14)
1) 1/2+1/4/1/2+1/3
5) 2/51/3/2/33/4
14) 1/y3/4/1/y+2/3
Problem 7.6, (1; 7; 8)
1)x/3=x/22
7) 2/x+1/3=4/x
8) 5/x+1/3=6/x
Problem 7.7, (37; 40; 49)
37) What is proportion? Give an example with your description.
40) What are corresponding angels in similar triangle?
49) Ben can prepare a company report in 42 hours. How long will take them working together to prepare four company reports?
Problem 7.8 (1; 3; 17)
1) y varies directly as x. y=65 when x=5 find y when x = 12.
3. y varies inversely as x. y=12 when x=5, find y when x=2.
17. A varies jointly as z and the sum of y and x.
Share Your Thoughts