185 Answered Questions for the topic Rational Expressions

L=14J+3K solving for K

At smiths bike rentals,it costs $28 to rent a bike for 5 hours.How many hours of bike use does a customer get per dollar?

Rational Expressions word problem what does the customer pay per dollar?

Rational Expressions

One number is 1/2 of another number. The sum of the two numbers is 33. Find the two numbers.

Rational Expressions, Equations, and Functions

Moving sidewalks. The moving sidewalk at O'Hare Airport in Chicago moves 1.8ft/sec. Walking on the moving sidewalk, Roslyn travels 105ft forward in the time it takes to travel 51ft in the opposite... more

rational equation

Jordan can build a birdhouse in 2 hours. If it takes her sister 3 hours to build a birdhouse, how long will it take them to build a birdhouse together?

ratio problems

Jack's boat consumes 1.8 gallons of fuel per mile while his brother's boat consumes 2.7 gallons per mile. What is the ratio in fuel consumption to Jack's brothers boat to Jack's boat.

an incorrect definition of an absolute value is (pick one)

an incorrect definition of an absolute value isA: |x|= x for x>0, 0 for x=0, -x for x<0B: |x|= x for x > or equal 0, -x for x<0C: |x|= x for x>0, -x for x< or equal 0D: |x|= x for... more

Is A=s^2 is a area formula that show a joint variation

Is A=s^2, A=π^2, A=l•w formula that show joint variation?

Why the answer is 1:500 but not 1:250000

The actual area of a playground is 900m2.If the area of the playground on a map is 36 cm2,then the scale of the map is? i thought the answer is 36:900*100*100=1:250000 but is wrong

a farmer has 20 boxes of eggs there are 6 eggs in each box what is the ratio ?

 also what is the simplest form  

Working together, two pumps can drain a certain pool in 3 hours. If it takes the older pump 13 hours to drain the pool by itself,

Working together, two pumps can drain a certain pool in 3 hours. If it takes the older pump 13 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own?  

How fast were the girls going

Silvia rode her bike 40km in the same time as Tracy rode28km. Tracys rate was 3kmh slower how fast were they

How to solve this trigonometry question?

You pay $145 for canning supplies plus $0.75 for each food item you can.a. How many canned items must you complete for the average cost per canned item to fall to $1?   b. What happens to the... more

Rationalize the denominator and simplify following expression

3√¼   please sow me steps and answer  in radical form. I keep getting 3√3/2

Find xyz in the equation of x^3y^2z=5^3 and yz^2=5^9

I don’t have any details to my question . Thank you 

Find the original number

The denominator of a fraction is 5 more than twice the numerator. If both numerator and denominator are decreased by 2, the simplified result is 1/3. Find the original fraction. (DO not simplify)

Rational expression application

The denominator of a fraction is 3 more than the numerator. If both numerator and denominator are decreased by one, the simplified result is 8/9. Find the original fraction.

Rational expressions

Simplify the rational Expressions by multiplying or dividing. List any undefin values.   1. X2-12x+32/x2-6x-16 • x+2/x2-16    2. X-7/x2-2x-35 ÷ 9x+54/10x+50   3. X/x+1 + x+2/x2-1   4.... more

How many magazines did the school library subscribe in December?

A school library spends $80 a month on magazines. The average price for magazines bought in January was 70 cents more than the average price in December. Because of the price increase, the school... more

Rational expressions

Can someone please help with this problem?    Find any values of the variable that make the expression undefined      2y   =  8y+7   I did 8y+7= y= -7/8    so the answer will be... more

a. For what values of x is the radical defined?

The rational equation dealing with springs mentioned in the beginning of this lesson is v= √ (k∕m x²) . The letters k and m represent constant values that reflect the composition of the spring and... more
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