If a takes person A 11 minutes, person B 21 minutes, and person C 33 minutes to complete the same task individually, then how long would it take if they work together? Estimate your answer to two places after the decimal, if necessary.

Answers

Answer 1

Answer:

5.92 min

Step-by-step explanation:

1/11 = person A's rate

1/21 = person B's rate

1/33 = person C's rate

Let t = time working to gether

rt = am't  of work done

(1/11)t = work done by person A

(1/21)t = work done by person B

(1/33)t = work done by person C

(1/11)t + (1/21)t + (1/33)t = 1

231((1/11)t + 231(1/21)t + 231(1/33)t = 231

21t + 11t + 7t = 231

39t = 231

t = 5.92 min

I did that in super detail for you.  Note:  If n = the time to do a job alone, then 1/n = the rate of speed in doing the job.  And, the rate times the time on the job = am't  of work done.  


Related Questions

Determine the value of x in the diagram.

Answers

it’s 60 degrees
x+2x+x+2x=360degrees
6x=360
x=360/6
x=60

PLEASEEEEEEEEEEEEEEEEE

Answers

Wait what? X =10 in Roman numbers therefore it’s d

divide the sum of 15 and 16 by 5​

Answers

Answer:

6.2

Step-by-step explanation:

15+16=31

31/5=6.2

Step-by-step explanation:

[tex]15 + 16 \div 5 \\ calculate \: the \: sum \: of \: 15 \: and \: 16 \\ 31 \div 5 = 6 \frac{1}{5} \\ or \: 6.2[/tex]

help with this math equation ?

Answers

I think the answer is 1x+3=7

If lines a and b are parallel, which of the statements is true?
A)
m21 m26
B)
m21 m27
99
m21 m28
D)
m23 m25

Answers

Answer:

B)

m21 m27

Step-by-step explanation:

Sana maka tulong :)

The True statement is m <1 = m < 8.

Option C is correct.

What is Parallel line?

The basic qualities listed below make it simple to identify parallel lines.

Parallel lines are defined as straight lines that are always the same distance apart.Parallel lines, no matter how far they are extended in either direction, never intersect.

As, from the property of parallel line

Corresponding Angle are Equal.Alternate Interior Angle are equalAlternate Exterior Angle are EqualVertical Angles are Equal

m <1 = m <8 Using Alternate Exterior Angle

and, <3 and <5 are angles on same side of transversal.

Learn more about Parallel line here:

https://brainly.com/question/16701300

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FIND THE ANSWER AND I WILL GIVE BRAINLIEST AND 50 POINTS

Answers

Answer:

Paul needs to work for 50 weeks.

Step-by-step explanation:

1,500+200= 1700

14,200-1,700= 12,500

12,500/125= 100

100/2= 50

let me know if this is wrong.

A Ferris wheel at the local fair has a diameter of 52 meters. Which expression can be used to find its circumference, C, in meters

A. C= 26 x π
B. C= 52 x π
C. C= 2 x 52 x π
D. C= 26²π

And how did you get the answwr

Answers

B . C= 52x.. step-by-step explanation

what's the distance between the two points , ( -3 , -4 ) and ( 4 , 3 ) ?

Answers

Answer: the distance between the two points in Decimal Form is 9.899

Answer:

9.8995

Step-by-step explanation:

What is 2x - 1 < 3? Solve

Answers

Answer:

x<2

Step-by-step explanation:

Answer:

x<2

Step-by-step explanation:

Let's solve your inequality step-by-step.

2x−1<3

Step 1: Add 1 to both sides.

2x−1+1<3+1

2x<4

Step 2: Divide both sides by 2.

2x/ 2 < 4/ 2

x<2

Answer:

x<2

 

Plsss hElpp!!!!! TY!!

Find the area of the circle below, to the nearest tenth. Use 3.14 for t.


Answers

Given:

A circle with diameter 9 cm.

To find:

The area of the circle.

Solution:

The area of a circle is:

[tex]A=\pi r^2[/tex]                   ...(i)

Where r is the radius.

We know that, the diameter of a circle is twice than its radius.

The diameter of the given circle is 9 cm.

[tex]r=\dfrac{9}{2}[/tex]

[tex]r=4.5[/tex]

Substituting [tex]r=4.5, \pi =3.14[/tex] in (i), we get

[tex]A=(3.14)(4.5)^2[/tex]

[tex]A=(3.14)(20.25)[/tex]

[tex]A=63.585[/tex]

[tex]A\approx 63.6[/tex]

Therefore, the area of the given circle is 63.6.

3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989380952572010654858632788659361533818279682303019520353018529689957736225994138912497217752834791315155748572424541506959508295331168617278558890750983817546374649393192550604009277016711390098488240128583616035637076601047101819429555961989467678374494482553797747268471040475346462080466842590694912933136770289891521047521620569660240580381501935112533824300355876402474964732639141992726042699227967823547816360093417216412199245863150302861829745557067498385054945885869269956909272107975093029553211653449872027559602364806654991198818347977535663698074265425278625518184175746728909777727938000816470600161452491921732172147723501414419735685481613611573525521334757418494684385233239073941433345477624168625189835694855620992192221842725502542568876717904946016534668049886272327917860857843838279679766814541009538837863609506800642251252051173929848960841284886269456042419652850222106611863067442786220391949450471237137869609563643719172874677646575739624138908658326459958133904780275900994657640789512694683983525957098258226205224894077267194782684826014769909026401363944374553050682034962524517493996514314298091906592509372216964615157098583874105978859597729754989301617539284681382686838689427741559918559252459539594310499725246808459872736446958486538367362226260991246080512438843904512441365497627807977156914359977001296160894416948685558484063534220722258284886481584560285060168427394522674676788952521385225499546667278239864565961163548862305774564980355936345681743241125150760694794510965960940252288797108931456691368672287489405601015033086179286809208747609178249385890097149096759852613655497818931297848216829989487226588048575640142704775551323796414515237462343645428584447952658678210511413547357395231134271661021359695362314429524849371871101457654035902799344037420073105785390621983874478084784896833214457138687519435064302184531910484810053706146806749192781911979399520614196634287544406437451237181921799983910159195618146751426912397489409071864942319615679452080951465502252316038819301420937621378559566389377870830390697920773467221825625996615014215030680384477345492026054146659252014974428507325186660021324340881907104863317346496514539057962685610055081066587969981635747363840525714591028970641401109712062804390397595156771577004203378699360072305587631763594218731251471205329281918261861258673215791984148488291644706095752706957220917567116722910981690915280173506712748583222871835209353965725121083579151X2

Answers

Answer:pi

Step-by-step explanation:

pi

Answer:that eqauls pie

Step-by-step explanation:

can anybody help me with these?​

Answers

A=(-1,-1) B=(1,3)C=(2,5)D=(-2,-3)E=(3,7)

A common mistake in fielding is not keeping the glove down True or false ?

this is for gym for baseball I don't know ​

Answers

Answer:

true

Step-by-step explanation:

Razionalisacion de denominadores 3 v3 tres sobre raiz cuadrada de 3

Answers

Answer:

√3

Step-by-step explanation:

Spanish

Racionalización de denominadores 3 / v3 tres sobre raíz cuadrada de 3

da

Usando el método de índices

3 / √3 = 3¹ / 3¹ / ²

= 3¹ / 3⁰.⁵

= 3¹⁻¹ / ²

= 3 ¹ / ²

= √3

Esto también se puede resolver multiplicando tanto el numerador como el denominador por √3

3 / √3 * √3 / √3

= 3√3 / √3 * 3

= 3√3 / √9

= 3√3 / 3

Los tres se cancelan y nos queda √3

English

Rationalization of denominators 3 /v3 three over square root of 3

gives

Using the method of indices

3 / √3 = 3¹/ 3¹/²

= 3¹/ 3⁰.⁵

= 3¹⁻¹/²

=3 ¹/²

=√3

This can also be solved multiplying both the numerator and the denominator by √3

3 / √3 * √3/√3

= 3√3/ √3*3

= 3√3/ √9

= 3√3/ 3

The three are cancelled and we are left with √3

The height of any child in Mr.Diaz’s class is no greater than 46 inches

Answers

Answer: h _<_ 46

there’s the line underneath the sign

Step-by-step explanation:

Which of the following steps would you perform to the system of equations below so that the equations have equal x coefficients? 4x+2y=4 12x+y=22 A. Multiply both sides of the top equation by 3 B. Divide both sides of the top equation by 3 C. Divide both sides of the bottom equation by 2 D. Multiply both sides of the bottom equation by 3​

Answers

Answer: A.

Explanation:
By multiplying the top equation by 3, you now have

12x + 6y = 12
12x + y = 22

To completely solve the equation, you multiply the whole bottom equation by -1.

12x + 6y = 12
-12x - y = -22

The -12x and 12 x cancel each other out.

6y = 12
-y = -22
______
5y = -10
y = -2


Now that you have the value of y, you can plug it into the original equation.

4x + 2y = 4
4x + 2(-2) = 4
4x - 4 = 4
4x = 8
x = 2

So, your final answer is (2, -2).

La suma de dos numeros es 57, y su diferencia es 9

Answers

Answer:

La suma de dos numeros es 57.Si el mayor de los dos números es 9 menos que el doble de los más pequeños, encuentre los dos números.

(Scroll Down for Answer!)

Step-by-step explanation:

3*y = 57 + 9 = 66

y = 66/3 = 22

x + 22 = 57

x = 57 - 22 = 35

Por lo tanto, los números son 35 and 22.

Walter needs new grass in the circular pen for his chickens. The pen has 308 feet of fencing. What is the area of the pen?

Answers

Answer: 7546feet²

Step-by-step explanation:

Since the pen has 308 feet of fencing, this is the perimeter of the circular pen and we can get the raduus which goes thus:

Circumference of a circle = 2πr

2πr = 308

2 × 22/7 × r = 308

44/7 × r = 308

r = 308 × 7/44

r = 49

Therefore, area of the circular pen will be:

= πr²

= 22/7 × 49 × 49

= 7546feet²

-
I need help pls !!!

Answers

Answer:

i think A

Step-by-step explanation:

if it's not that then im sorry for wrong answer

Which statement accurately describes the scatterplot?
A. There is one outlier.
B. The points seem to be clustered around a curve.
C. There are two outliers.
D. There are two distinct clusters.
i’ll give brainlist<3

Answers

Answer:

B. The points seemed to be clustered around a curve.

statement accurately describes the scatterplot the points seem to be clustered around a curve.

What is an outlier?

An outlier is an extreme value in a data set that is either much larger or much smaller than all the other values.

As we know, outlier provides the extreme value in a data set.

These value can larger or smaller.

Thus, the statement which satisfies the plot correctly is the points seem to be clustered around a curve.

Learn more about his outlier here:

https://brainly.com/question/26958242

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There are blank
legs for every 4 ears.
There are blank
legs for every 1 ear

Answers

what’s the question i don’t understand

Answer:

There are 8 legs for every 4 ears.

There are 2 legs for every 1 ear.

Step-by-step explanation:

The pig and the mouse have a total of 4 ears.

We can count to see that there are 8 legs for every 4 ears.

We want to find a ratio of legs to ears that is equivalent to 8:4

(36+4) divided by 10 how do I write it in a story problem

Answers

Step-by-step explanation:

you can write it as

the sum of of thirty six(36) and four(4) is divided by Ten(10)

There are 4 rows of 10 seats. And there are 36 girls and 4 boys in a class. How many groups will they be in if they all have to take a seat?

(I honestly don’t know, I hope this works!)

Pls help! First correct answer gets brainliest!!

Answers

Answer:

3 and -(-2)

Step-by-step explanation:

It would be 3 and -(-2)

Convert 6.3 meters to millimeters.

Answers

It would be 6,300 millimeters

Answer:6300mm

Step-by-step explanation:

A country's population in 1991 was 147 million.ON 1998 it was 153 million.Estimate the population in 2017 using the exponential growth formula round your answer to the nearest million.

Note when solving foe k,round four decimal places



P=Aekt

Answers

Answer:

its 169 million i think sorry if wrong have a good day

Step-by-step explanation:

Please help me with this homework question. No silly answers please and no bots! I will mark brainliest to whoever gets all them right. Thank you !​

Answers

Answer:

The formula for the area of the triangle is:

[tex]\displaystyle A=24x^2[/tex]

When x = 3, the area is 216 square centimeters.

When x = 2.4, the area is 138.24 square centimeters.

And when x = 5, the hypotenuse of the triangle is 50 centimeters.

Step-by-step explanation:

We are given a right triangle with a height of 8x and a base of 6x.

The area of a triangle is given by the formula:

[tex]\displaystyle A=\frac{1}{2}bh[/tex]

So, by substitution:

[tex]\displaystyle A=\frac{1}{2}(8x)(6x)=24x^2[/tex]

When x = 3, the area will be:

[tex]\displaystyle A(3)=24(3)^2=216\text{ cm}^2[/tex]

And when x = 2.4, the area will be:

[tex]A(2.4)=24(2.4)^2=138.24\text{ cm}^2[/tex]

When x = 5, the height will be 8(5) = 40 cm and the base will be 6(5) = 30 cm.

By the Pythagorean Theorem:

[tex]a^2+b^2=c^2[/tex]

So:

[tex](40)^2+(30)^2=c^2[/tex]

The hypotenuse will be:

[tex]c=\sqrt{1600+900}=\sqrt{2500}=50\text{ cm}[/tex]

Of the cans of soup in Rolando’s cupboard, 2/4
are tomato and
1/3 are vegetables. What fraction of the cans of soup in Rolando’s cupboard are either tomato or vegetable?

A
5/6





B
6/20



C
19/20



D
8/12

Answers

Answer:

A

Step-by-step explanation:

To find the answer, convert the fractions so that they have the same denominator. 2/4 can be 3/6, since both of them are one half. 1/3 can be 2/6 since both are a third. 3/6 + 2/6 = 5/6.

What number is 1 tens and 20 ones?

Answers

Answer:

30

Step-by-step explanation:

1 ten = 10, 20 ones = 20

If the mean of the data set shown below is 11, find x.



x, 12, 8, 15

11.5
10
9

Answers

Answer:9

Step-by-step explanation:

You have to add it together

A family wants to rent a car to go on vacation. Company A charges ​$50.50 and 11¢ per mile. Company B charges ​$60.50 and 14¢ per mile. How much more does Company B charge for x miles than Company A​?

Answers

Answer:

3 more cents per mile

Step-by-step explanation:

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