197 Answered Questions for the topic Rational Expressions

Rational Expressions

05/26/17

word problem
Rachel pulls two tiles out of a bag of black and white tiles without replacing the first tile. The bag has 10 more black tiles than white tiles. Write and simplify an expression that represents the... more
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Rational Expressions Algebra Word Problem

05/25/17

Hole Digging word problem
if it takes two people 20 minutes to dig a hole and it takes one of the people 25 minutes to dig the hole by himself, how long will it take the second person to dig the hole individually
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Rational Expressions Solving Rational Equations

05/21/17

Matt drives 200 miles to another city. On the drive back home, his average speed decreases by 5 miles per hour.
Rest of the word problem here. Write an equation that gives the total driving time t (in hours) as a function of his average speed r(in miles per hour) when driving to the city. Then find the total... more
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Rational Expressions

05/13/17

Please help I'm stuck on this question for a few days
the length of a rectangle is (x+3)/x^2+x+12. the width is (x^2+7x+12)/w^2-9. what is the area in the simplest form?  Factored: (x+3)/x^2+x+12*(x+3)(x+4)/(x+3)(x-3) I get stuck in simplifying... more
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Rational Expressions

05/11/17

you can rake your yard in 30 minutes. your friend can rake the same yard in 50 minutes. working together, how much time does it take to rake the yard?
How do I set this up?
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Rational Expressions

05/07/17

what values is the following expression undefined? (x-2)/(x^2+9)
not sure what the domain restrictions are for x^2 = -9
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Rational Expressions

05/03/17

best interpertation of the expression(200+110)n
an empty jar has a mass of 200 grams.  A full jar contains 110 grams of spice. The company sells n jars filled with spice. Select the best interpretatin of the expression (200+110)n a.  The cost... more
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Rational Expressions

04/23/17

the sum of a number and its reciprocal is 13/6 find the number
in 5 hours a secretory can address 100 envelopes another secretory can address 100 envelopes in 6 hours how long would it take the secretaries working together to address 300 envelopes 
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Rational Expressions

04/23/17

The track at east side high school is 440 yards long.it took maya10 minutes to jog around the track 4 times. Finds her speed in miles per hour.
Choose the appropriate forumal. Includ the unit in your answer.
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Rational Expressions Domain

04/10/17

f(x)=3x+1/x-5
find the domain of the rational expression. 
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Rational Expressions Math Help Math Word Problem

04/10/17

How long it takes one person to catch up to another
jo and Casey warm up for a track meet by running some laps. jo takes 3 minutes per lap while Casey takes 5 minutes to run the same lap. If Casey started running and jo starts a minute later, how... more
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Rational Expressions

04/06/17

Eight times the reciprocal of a number times 2 times the reciprocal of 9
Eight times the reciprocal of a number times 2 times the reciprocal of 9
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Rational Expressions

03/22/17

Maria bought 3 lbs of grapes for $.90 per lbs. How many lbs of oranges costing $1.25 per lb must she purchase so the total cost for fruit is $1 per lb
Maria bought 3 pounds of grapes for $0.90 per pound. How many pounds of oranges costing $1.25 per pound must she purchase so that the total cost for fruit is $1 per pound
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Rational Expressions

03/07/17

One pump can drain a pool in 9 minutes. When a second pump is also used, the pool only takes 4 minutes to drain
One pump can drain a pool in 9 minutes. When a second pump is also used, the pool only takes 4 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in... more
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Rational Expressions

12/02/16

Rational Expressions Divide
  x2-x-12                  2x+6 ---------                 -------   x-4                        x-5   This problem has the Division Sign in the middle
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Rational Expressions Math

11/15/16

What are some similarities between a rational expression and a rational equation?
 I'm confused on what the similarities are between a rational expression and a rational equation.
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Rational Expressions Algebra Algebra Question Algebra Help

11/14/16

A wheelchair company determines that the cost of manufacturing them follows the cost equation , where C = Total Cost and x = number of wheelchairs manufactured.
A wheelchair company determines that the cost of manufacturing them follows the cost equation , where C = Total Cost and x = number of wheelchairs manufactured. a. The 500,000 represents fixed... more
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Rational Expressions

11/13/16

Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box. Also, specify any restrictions on the
Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box. Also, specify any restrictions on the variable.         40x^2... more
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Rational Expressions

11/12/16

A sink can be filled with a cold water faucet in 4.5 minutes. If both hot and cold faucets are open the sink can be filled in 3.6 minuets.
how long will it take for the sink to fill with just the hot water faucet open? 
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Rational Expressions

11/10/16

Rational Expression
Please answer the following 3 questions:1) Find the value(s) of x for which the rational expression      x        is undefined, and explain why it would be undefined.                              ... more
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Rational Expressions Word Problem

10/19/16

maria can fill an order in 7 hours. tom can fill an order in 9 hours. working together, how long will it take them to file the order
solving applications using rational expressions  
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Rational Expressions

10/16/16

Find the rate of the rowing team in still water.
A rowing team rowed 90 miles while going with the current in the same amount of time as it took to row 10 miles going against the current. The rate of the current was 4 miles per hour. Find the... more
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Rational Expressions Word Problem Word Problems Mathematics

09/26/16

The diff in the ave speed of two trains is 16 The slower train takes 2 hs longer to travel 170 m than the faster train takes to travel 150 of the slower train
Hint: Use the formula v= d/t
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08/14/16

divide these rational expressions
(6x^2 -3x+5) /(2x-3)
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Rational Expressions Math Algebra 2 Algebra

07/02/16

Solving Rational Equations
John takes 2 hours longer than Andrew to peel 600 pounds of apples. If together they can peel 600 pounds of apples in 8 hours, then how long would it take John to peel the apples working alone?
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