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3 years ago

What is the difference between the rational expressions below? 3x+1/x^2-5/x

Mathematics

1 answer:

Tom [10]3 years ago

5 0

Answer:

(3x^2-5x-5)/(x^2+x) <--- answer

Step-by-step explanation:

3x/(x+1) - 5/x = (3x^2 - 5(x+1) )/[ x(x+1) ]

= (3x^2 - 5x - 5)/(x^2 + x)

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Suppose that the duration of a particular type of criminal trial is known to be

abruzzese [7]

Answer:

c.) if the one of the trails is randomly chosen, find the probability that it lasted at least 24 days

Step-by-step explanation:

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3 years ago

Isabella and Tanner are running in a 100-mile relay race. First, Isabella runs for 2 hours and hands off to Tanner, who bicycles

Murljashka [212]

Answer:

5 miles per hour and 15 miles per hour.

Step-by-step explanation:

Given:

Isabella and Tanner are running in a 100-mile relay race.

First, Isabella runs for 2 hours and hands off to Tanner, who bicycles for 6 hours to the finish line.

Tanner's average cycling speed is 5 miles an hour less than 4 times Isabella's average running speed.

Question asked:

what are their speed ?

Solution:

Let average running speed of Isabella = $x$

Tanner's average cycling speed is 5 miles an hour less than 4 times Isabella's average running speed means,

Tanner's average cycling speed = $4x-5$

Now, $Distance = speed\times time$

As we know that the total distance is 100 mile which is covered by both together,

Distance traveled by Isabella + Distance traveled by Tanner = 100

$x\times2 + (4x-5)\times6 = 100\\2x +24x-30=100\\26x-30 =100$

Adding both sides by 30

$26x =1 30\\$

Dividing both sides by 26

$x=5$

Isabella's average running speed $x=5 \ miles \ per \ hour$

Tanner's average cycling speed = $4x-5$ = $4\times5-5 =20 -5 = 15 \ miles\ per \ hour$

Therefore, Isabella's average running speed is 5 miles/hour and Tanner's average cycling speed is 15 miles/hour.

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4 years ago

Mya borrowed 36,000 to purchase a new car. The interest rate on her loan is 5.75%. How much interest will be paid back in 7 year

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Answer:

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Step-by-step explanation:

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3 years ago

How many eighth notes do you need to total the amount of a half note

andrew11 [14]

Answer:

Four eighth notes

Four eighth notes equal one half note in duration and eight eighth notes equal one whole note.

Step-by-step explanation:

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3 years ago

It costs $15 to enter the fair, then each booth costs $0.75 each. You have $24. Write an equation to show how many booths you, x

Blizzard [7]

Answer:

$(x * 0.75) + 15 = $24$

Step-by-step explanation:

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3 years ago