197 Answered Questions for the topic Rational Expressions

Rational Expressions

02/09/15

expression with different denominators

give the expression 1(x-5), choose some values of x and evaluate the expression for those values. is it possible to choose a value of x which the value of the expression is greater than 10? if so,... more
Rational Expressions Square Roots Roots Cube Roots

02/05/15

Simplify the rational expression

Simplify the Rational expression for when: n is even n√m3n and for when n is odd n√m3n
Rational Expressions

01/31/15

Multiplying Rational Expressions

2a^2b      b -------- * --- b^2c        a
Rational Expressions Math Algebra

01/07/15

The # of votes received by the winner and loser in an election was a ratio 8:5 The winner received 11,880 votes, how many did the loser get

Please answer and explain. (I got 7,425)
Rational Expressions Math Algebra 2 Math Help

12/24/14

Show all work simplifying 2/x + 2/x+1 - 2/x+2 ?? Remember to list all the restrictions!

Show all work simplifying 2/x + 2/x+1 - 2/x+2 ?? Remember to list all the restrictions!   use complete sentences please!
Rational Expressions Math Algebra 2 Math Help

12/22/14

Show all work simplifying 1/x + 3/8 = 1/2 USE COMPLETE SENTENCES TO EXPLAIN HOW TO DO THIS?

Show all work simplifying 1/x + 3/8 = 1/2 USE COMPLETE SENTENCES TO EXPLAIN HOW TO DO THIS?
Rational Expressions

11/13/14

(Rational expression word probelm) A person traveled...

A person traveled 120 km in one direction.  The return trip was made at double the speed and in 3 hours less time.  Find the speed going.
Rational Expressions

11/13/14

(Rational expression word probelm) A sample of 125 shows

A sample of 125 shows 4 defective bulbs.  How many defective bulbs would you expect in a shipment of 1000 bulbs?
Rational Expressions

11/13/14

(Rational expression word probelm) Bill can do a job in 4 hours...

Bill can do a job in 4 hours.  It takes joe only 3 hours.  How long will it take if they work together?
Rational Expressions

11/13/14

(Rational expression word probelm) One car travels 20km/hr faster....

One car travels 20 km/hr faster than another.  While one car travels 225 km, the other one travels 325 km.  Find their speeds.
Rational Expressions Algebra

11/12/14

Find all numbers for which the rational expression is not defined.

Find all numbers for which the rational expression is not defined.   1.X+8/x^2-64   2.x^2-4x-32/x^2-4x-12
Rational Expressions

11/05/14

Rational expressions and equations simplify, state the non-premissible value(s)

2x+12/(x+6)(2x+1) 14-2n/n²-7n 6y²+9y/12y²     Simplify . State the non-permissible value
Rational Expressions

10/06/14

There are 110 calories per 28.4 grams of crispy rice cereal. Find how many calories are in 42.6 grams of this cereal

There are 110 calories per 28.4 grams of crispy rice cereal. Find how many calories are in 42.6 grams of this Cereal
Rational Expressions

09/18/14

Algebra Word Problem

Stevie biked 96 miles in a day. She split the ride into two parts, before and after lunch. Before lunch she biked 42 miles. The amount of time she spent riding after lunch was 1 hour more than the... more
Rational Expressions Simplifying Expressions

08/26/14

on the page http://www.purplemath.com/modules/rtnldefs2.htm#continue

on the page http://www.purplemath.com/modules/rtnldefs2.htm#continue at the bottom, is the 'technically-complete answer' not actually complete? should it not say that x cannot equal -2, as well as -3? more
Rational Expressions

08/14/14

I need help with two problems they are both fractions 1-x^2/x and 2b-2/2b^2-8 I need to find the domain

these are rational expressions and I need to find the domain written in a set of notations and have a excluded value set and factor
Rational Expressions Word Problem

06/11/14

Word Problem Help

Alpine's street sweeper cleans downtown in 60 hrs. A newer model cleans in 20 hrs. Together, how long to sweep the streets?
Rational Expressions

06/11/14

Rational Expressions addition and subtraction

(4/x+1)+(1/x^2-x+1)-(12/x^3+1)
Rational Expressions

06/03/14

subtracting rational expressions...please help!

__9x+1__  _  __6x-2__   X+1.             X+1
Rational Expressions

05/09/14

rational expressions without a common denominator

2/x + 2/3=1 first i have to get a common denominator,yes? which would be 3x...so its 6/3x+2x/3x=1now i am lost
Rational Expressions

05/08/14

rational expression , need to show the domain the excluded value,set , the factor and the real numbers

x²–36   3x   7w-2 16w2-1
Rational Expressions Math Algebra Inequalities

05/02/14

solving rational inequalities with a sign chart

Hi, i have 2 application questions about rational inequalities that i hope you will help me solve and explain to me how are they solved:1)When successful new software is first introduced, the... more
Rational Expressions

03/29/14

What is the LCD of 1/10x^4 and 4/5x

This question comes from ch.7.3 titled :Adding and subtracting rational Expressions with the same denominator and least common denominator.
Rational Expressions

02/27/14

How to simplify ((4b^2c)^3/20(ab)^2)x((5a^5c)/(18bc^6)

I'be tried this problem several times and keep getting stuck. I don't think I'm starting it right. 

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.