Libby can finish a paper in 2 hours. Ethan can finish the same paper in 4 hours. How
long will it take them to finish a paper if they work together?

Answers

Answer 1

Answer:

1.33333 hours

Step-by-step explanation:

Given :

Time taken by Libby = 2 hours

Time taken by Ethan = 4 hours

rate = 1 / time taken

Libby's rate = 1 /2

Ethan's rate = 1/4

Combined rate = Libby's rate + Ethan's rate

Combined rate = 1/2 + 1/4 = 3/4

Time taken = 1 / combined rate

Time taken = 1 / (3/4)

Time taken = 4 /3

Time taken = 1.33333 hours


Related Questions

PLZ HELPPP MEEEE
Combine the radicals

Answers

Answer:

C) [tex]17\sqrt{13}[/tex]

Step-by-step explanation:

[tex]-2\sqrt{13} +19\sqrt{13} \\\\17\sqrt{13}[/tex]

Please Help me out I just need the answers and pls make sure they are right idrc for an explantion​

Answers

1. 215.10

2. 57.60

3. 16.11

4. 8.24

5. 89.40

6. 149.10

7. 476

8. 48

9. 59.50

10. 13.49

Estimate a 20% tip on a dinner bill of $142.74 by first rounding the bill amount to the nearest ten dollars.
Estimated tip:
X
6
?

Answers

$142.74 rounded to nearest ten dollars is $140. And so now you find 20% of 140 by multiplying 140 by .20 (which is the decimal form of 20%). You’ll get $28 and that will be tip but total bill would be $140+$28 or $142.74+$28 to be exact.

Answer:$171.29

Step-by-step explanation:

if the tip amount is around $28.55 and your putting 20% it would $171.29 but it would determine how many people they are.

Based on the samples collected if there are 10000 voters in the town how many voters can we predict will vote for smith

Answers

The question is incomplete and a question match couldn't be found online. However, an hypothetical solution will be provided

Answer:

Kindly check explanation

Step-by-step explanation:

We can make prediction about a population based on the outcome of a sample statistic.

From a random sample of voters, n ; the number who voted Smith = x

(p = x / n) gives the proportion of votes Smith will get according to the sample :

For instance :

n = 100 ; x = 10

p = 10 / 100 = 0.1

The predicted Number of votes Smith will Get if there are 10000 voters :

p * 10000

0.1 * 10000

= 1000 votes

The value of 23 + 33

Answers

Answer:

56 hope it helps....

hhcxxghjo9

Answer:

2^3 + 3^3 = 35

Step-by-step explanation:

You can simply use a calculator on your PC, phone, tablet, or macbook. If you just add 2 to the 3rd power and 3 to the 3rd power then you'd get 35. I'm sorry I'm not really good at math but I just wanted to give you a simpler way to do this problem considering it is not too hard to solve.

5.
Draw a scatter plot that shows a negative association that is not linear.

Answers

Something similar to this. It is negative because the y decreases as the x increases. It is nonlinear because you cannot make a straight line through the data points.

SOMEONEEEE HELLPPPPPPP PLEASE?!??!

Answers

Answer:

(1,4)

Step-by-step explanation:

the Answer is: (x,y)=(1,4)

Which is more 35 inches or 3 feet

Answers

Answer:

3 feet

Step-by-step explanation:

3 feet is more because 35 inches = 2 feet and 11 inches.

please helpppppppppppppp

Answers

Answer:

x=90

Step-by-step explanation:

3x-160 = x+20. Why you may ask? they are corresponding angles which makes them congruent. 2x = 180, so x = 90

Answer:

90

Step-by-step explanation:

angle 1 and 4 are equivalent so:

3x - 160 = x + 20

_________________

3x - 160 = x + 20

   +160   I  +160

  3x = x + 180

  - x  I   - x

   2x = 108

   ÷2  I ÷2

      x = 90

If h(x) = 2x and k(x) = 2x - 4, what is h(k(x))?

Answers

To find h(k(x)), substitute k(x) into h(x):

h(k(x)) = 2x

          = 2(2x - 4)

          = 4x - 8

Thus, h(k(x)) = 4x - 8 would be your final answer.

G varies directly as the square of j and inversely as m. If g=0.05 when j = 0.4 and m=1.6, what is g when j =6 and m=4

Answers

Answer: The value of G = 4.5

Step-by-step explanation:

As per given,

[tex]G\propto \dfrac{j^2}{m}[/tex]

When we replace proportional sign with an equal to sign, we get

[tex]G=k\dfrac{j^2}{m}[/tex], where k = constant

If G=0.05 when j = 0.4 and m=1.6, then

[tex]0.05=k\dfrac{0.4^2}{1.6}\\\\ 0.05=k(0.1)\\\\ k=0.5[/tex]

Now,

[tex]G=0.5\dfrac{j^2}{m}\\\\\Rightarrow\ G=0.5\dfrac{6^2}{4}\\\\\Rightarrow\ G=4.5[/tex]

hence, when j =6 and m=4, the value of G = 4.5

If the parent function is y = 3^x,which is the function of the graph?

Answers

Answer:

[tex]y = 3x + _ 2[/tex]

Step-by-step explanation:

The graph of y = 3^x will pass through the point (0, 1).  This graph passes through the point (-3, 1); it has been shifted to the left 3 units.

A function can be translated, or shifted, to the left by adding a number to x before the function is applied; in this case, it means adding 3 to x before the base is raised to the power.  This gives us

This graph has also been translated, or shifted, down 2 units.  This can be done by subtracting a number from the end of the function; this gives us

find the missing side. round to the nearest tenth.

Answers

Answer:

A. 5.2

Step-by-step explanation:

I was taught how to do this using the SOH CAH TOA method.

Step 1: Circle your given angle.

Step 2: Label O, H, and A. The line across from your circled angle will be labeled O. The side across from the right angle is H. The last unmarked side is A.

Step 3: Cross off the useless side, in this case, that would be A because there is no corresponding information.

Step 4: Identify if it is sine, cosine, or tangent using SOH CAH TOA. In this case, you only have an O and H so we will use SOH.

Step 5: Set up the equation. The equation is [tex]\frac{sine(31)}{1} =\frac{x}{10}[/tex]. We will use sine of the given angle is equal to the side marked O over the side marked H.

Step 6: Solve for x until x is by itself, then enter into your calculator.

You will enter [tex]sine(31) * 10[/tex] into your calculator and round if necessary.

Matilda needs at least $112 to buy a new dress. She has already saved $40. She earns $9 an hour babysitting. Write and solve an inequality to find how many hours she will need to babysit to buy the dress. Interpret the solution.

Answers

she will need two more hours to buy the dress

This is how many hours you will need 5 hours

Hey math can you help

Answers

So if we’re talking about meters per second, you would need to divide.

-17.5/5 = -3.5

NOW YOU THINK THATS YOUR ANSWER BUT NOO. You CANNOT have a negative second. So you take the absolute value of -3.5 and your answer would be 3.5

The rate of the anchor is 3.5 meters per second.

a circus charges $2.50 for a kid tickets and $6 for adult tickets. Last weekend, twice as many kids attended the circus than adults. If the tickets sales totaled $7, 150, how many kids attended the circus?

Answers

1300 kids attend i think

PLS HELP THIS IS FOR A GRADE AN IS TIMED

Answers

Answer: 392

Step-by-step explanation:

Which of the following number cannot represent the 3 sides of a triangle?

{14,28,39}
{4,16,19}
{4,11,13}
{5,16,21}

PLEASE HELP I WILL GIVE BRAINLIEST

Answers

Answer:

d  5,16,21 Am sure I think

Step-by-step explanation:

Answer:

{5,16,21}

Step-by-step explanation:

sides of triangle: the sum of every two sides must be greater than the third sides.

{14,28,39}

=> 14 + 28 > 39, 14 + 39 > 28, 28 + 39 > 14  (correct)

{4,16,19}

=> 4 + 16 > 19, 4 + 19 > 16, 16 + 19 > 4 (correct)

{4,11,13}

=> 4 + 11 > 13, 4 + 13 > 11, 11 + 13, > 4 (correct)

{5,16,21}

5 + 16 not > 21 (wrong)

He determined that the value of 6 in 76,345 is 100 times the value of 6 in 34,675. Part A: Is Lucas right? Part B: Explain why Lucas is right or wrong.

Answers

Answer:

Lucas is not right.

Step-by-step explanation:

To find: whether the value of 6 in 76,345 is equal to 100 times the value of 6 in 34,675

Solution:

Value of 6 in 76,345 = 6,000

Value of 6 in 34,675 = 600

Now 6000 = 10 × 600

So,

Value of 6 in 76,345 is equal to 10 times the value of 6 in 34,675.

Therefore, Lucas is not right.

Answer:

Part A: Lucas is wrong.

Part B: The value of 6 in 76,345 is 6,000 and  the value of 6 in 34,675 is 600.

Part C: The value of 6 in 76,345 is equal to 10 times the value of 6 in 34,675.

10 × 600 = 6,000

Step-by-step explanation:

I put this on each of my answers and I got all three parts correct. Hope this helps you!!!!

Please mark my answer as the Brainiest!!!!!

Thank You!!!!!!!!

PLEASE HELP WHAT ONE
Its not C

Answers

Answer:

D. (-3, 4)

Step-by-step explanation:

12. Solve for x. x = ___________

Answers

Step-by-step explanation:

this is math right what grade is this

Find the value of x 6x+2

Help Due in 30 mins!

Answers

Answer:

Step-by-step explanation:

(6x + 2)° + 42° + 58° = 180°

6x + 2 = 180 - 100

6x = 78

x = 13

Answer:

13

Step-by-step explanation:

There are 180 degrees in a triangle

58 + 42 + (6x +2 ) = 180

98 + (6x + 2) = 180

Subtract 98 from 180.

6x +2 = 82

Subtract 2 from 82

6x = 80

x = 13.333 or 40/3

Factorizar Sumas de cubo


1) 8x³ + 1

2) 27a³ + b³

3) 8x³ + 1,000

Answers

[tex] \huge{\mathbb{{ANSWERS}}}[/tex]

1.) 8x³ + 1

[tex] \underline{ \tt{{(2x + 1) \times (4 {x}^{2} - 2x + 1)}}}[/tex]

2.) 27a³ + b³

[tex] \underline{ \tt{{(3a + b) \times (9{a}^{2} - 3ab + {b}^{2})}}}[/tex]

3.) 8x³ + 1,000

[tex] \underline{ \tt{{8(x + 5) \times ( {x}^{2} - 5x + 25)}}}[/tex]

Note: My anwer is base on my knowledge

Hopefully Help:)

#CarryOnLearning

_MafiaQueen4

Alice is a good gambler and always knows when to stop. Suppose in a game, in each round she has a winning probability of 0.8 and she will stop at the first loss. Try to find the upper bound on the probability that she can win at least 10 rounds using Markov's inequality.

Answers

Answer:

The answer is "0.500".

Step-by-step explanation:

The chance that round will be won, [tex]P (win) =0.8[/tex]

The likelihood of losing round by complementary law

[tex]P(loss) = 1 -P(win)\\\\[/tex]

            [tex]=1-0.8\\\\=0.2\\\\[/tex]

Let X be the number of rounds to the first loss played.

Here, [tex]X \sim Geometric (p=0.2)[/tex]

The PMF of X is the following:

[tex]P(X=x)=p(1-p)^x\\\\[/tex]

        [tex]=(0.2)(1-0.2)^x\\\\=(0.2)(0.8)^x, \ \ \ \ \ x=1,2,.....[/tex]

The mean of X is the geometric random variable property, [tex]E(X) =\frac{1}{P}= \frac{1}{0.2}=5\\\\[/tex]

Markov's Inequality:

Suppose X is any random variable that has no negatives. So,

[tex]P(X \geq s)\leq \frac{E(X)}{s} for s >0\\\\[/tex]

Find the upper bound of [tex]P (X \geq 10)[/tex]

[tex]P(X \geq 10) \leq \frac{E(X)}{10}[/tex]

                 [tex]=\frac{5}{10}\\\\=\frac{1}{2}\\\\=0.5\\\\[/tex]

 The highest probability is, therefore, that Markov's inequality will win at least ten rounds: 0.500

Mr. Rosas had $90 to purchase snacks for a school party. He bought 36 bags of chips and 36 bottles of juice. Each bag of chips cost $0.69, and each bottle of juice cost $1.20. How much money did Mr. Rosas have left after these purchases?

Answers

Answer:

$21.96

Step-by-step explanation:

Total money with Mr. Rosas = $90

Total cost of chips = 36*0.69 = $24.84

Total cost of juices = 36*1.20= $43.2

Total money spent = $24.84 + $43.2 = $68.04

Money left with Mr. Rosas

= $90 - $68.04

= $21.96

write a real world division problem for which you would drop the remainder


MEANING THERE WOULD BE NO REMAINDER!!!

Answers

Answer:

No remainder: Ana has 49 chocolate bars and she wants to give the same amount to each of her seven friends. How many chocolate bars would each friend get?

You have a remainder but don't use it: Ana has a 498 sticker pack. She wants to divide them amongst her 7 friends. How many stickers would each friend get if they all get the same amount?

Step-by-step explanation:

In the first one if you divide 49 by 7 you will get no remainder but in the second one you will

I didn't know what your question meant so I answered it if the problem had no remainder or if the problem did have a remainder but it is not used

Hope this helped :)

Answer:

You are a teacher holding a competition amongst your students. In your class, you have 31 children competing. The prizes that you give them are chocolates. Beforehand, you bought 2 bags of Hershey's Kisses. Inside one bag, there are 70 Hershey's Kisses. In the end of the competition, you teach your students that in your classroom, there are no winners or losers; just learners. You spread the Hershey's Kisses evenly amongst all of your students. You keep the remaining ones left. How many Hershey's Kisses do your students get?

(I hope whoever grades this for you gets a little laugh out of it lol)


Find the area of the shape shown below.

Answers

Answer:

55 units²

Step-by-step explanation:

square = 25

triangle = 30

both = 55

Are the triangles similar ? If so which shortcut (SSS, SAS, AA) proves they are similar?

Answers

Answer:

Yes, SAS.

Step-by-step explanation:

3/5 = 0.6 and so does 4.8/8

help please, solve for D
12
25
4
5

Answers

Answer: 81.98274589 is what i got but it will be 81 hope this helped

Step-by-step explanation:

how many 3 digit whole numbers are there between 99 and 1000

Answers

Answer:

901

Step-by-step explanation:

1000 - 99 = 901

thats how you find the answer

Answer:

910

Step-by-step explanation:

Other Questions
Which of these actions precedes a precipitation eventA: clouds form B: the air gets colderC: the wind picks up speedD: Raindrops are supercooled 1) Why would King Arthur not be accepted by other knights and lords and noblessurrounding the regions of Britain?2) What does the damsel have with her as she startles the court of Arthur? Why does Arthur and his court think this is an odd thing for her to carry?3) Who sent the damsel--and what does she seek? Who fulfills her plea?4) What does the lady say will happen to the man who draws the sword?5) How does this man react when he finally acquires the sword-does he gives it back?What does he do that later he will spend the rest of the tale trying to redeem himself for?6) What does Launceour seek to do and what is his fate or what becomes of him? Is he successful in his task?7) Who is Garlon and what becomes of him?8) What does Balyn do that causes such a sorrowful chain of events at the feast of King Pelles? Billy made 2 gallons of juice for a picnic. He said that he made 24 quarts of juice. How many cards are in a standard deck of cards? What are their colors? Batista Company management wants to maintain a minimum monthly cash balance of $19,900. At the beginning of April, the cash balance is $19,900, expected cash receipts for April are $244,400, and cash disbursements are expected to be $253,300. How much cash, if any, must be borrowed to maintain the desired minimum monthly balance Please help! Ill mark you as BRAINLIST Create an anagram poem for the word SpringTimeExample CatC - cats are cuddly and cute A - animals make people smile T - tiny, but fierce, cats are little lions! GUYS PLEASE PLEASE HELP WITH THIS!!! Given the function h(x) = 2.25x, find h(2) is 12, -15, -18, -21 arithmetic Write a letter to one of the pirates who was with you during the treasure hunt to inform him that one of the crew members had betrayed them. Discuss the purpose of writing the letter. Discuss the evidences you have against that crew member Convince your partner and provoke him to take a serious action. Convertir:A. 3Km a mB. 250 ma KmC. 1000Cm a mD. 10000 mm a Cm 3. Define the following:a. electromagnetic radiationb. wavelengthc. frequencyd. quantume. photon Which of the following ordered pairs is a solution of the system of inequalities?y > 2x2 8y x2 3x + 4Question 5 options:A) (4, 3)B) (3, 2)C) (5, 0)D) (0, 5) What is the answer to the problem Respond to the following questions in SPANISH COMPLETE SENTENCES1. Vas al centro comercial los sbados?2. Tienes que ir al supermercado hoy?3: Quieres ir a Nueva York en el futuro? helpppppppp will b marked brainliest!!!!!!!!!! Which system of equations is represented in the graph?a. y= -2 x-2y=6b. y= -2 x+2y=6c. y= -2 2x-y= 3d. y= -2 2x+y= -3 The most common Self calming device for infantsA Crying B thumb sucking C Taking a nap D Holding someone hand A track star jumped 6 feet. The record is 84 inches. How much further does he need to jump to beat the record?thank you!! A small business owner is determining her profit for one month. Her expenses were $230.21 for utilities, $2,679.82 for rent, and $3,975.00 for employee salaries. She made $11,449.27 in sales for the month. What is her profit? Write 4 sentences about stars. Use at least one adjective in each sentence Example 1. Put four sentences2. Put four sentence or three!! HURRY TIME SENSITIVE GIVING BRAINLLYYY