a can do.a piece of work in 6 days and B in 8 days each working 7hours a day In what time will they finish it together, working 8hrs a day

Answers

Answer 1
A can complete the work in 7*6 hrs = 42 hrs. A can complete in 1 hr = 1/42 part. B can complete the work in 7*8 hr = 56 hrs. A&B together do in 1 hr = 1/42 + 1/56 = 7/168 = 1/24 part. So they will do in 8 hrs = 8*1/24 = 1/3 part. Hence they need 1÷1/3 = 3 days to complete the work.


Related Questions

Find the length of BC.

Answers

Answer:

12

Step-by-step explanation:

If the perimeter is 58,

take 17(2) for booth sides.

Which you will get 34.

58-34=24

Now you know that the remainder is the two vertical sides.

24/2=12

BC=12

The expression 0.75 + 0.15c can be used to find Mr. Thompson's cost for making c cookies. How much does it cost mr. Thompson to make 45 cookies?

Answers

Answer:
$7.50

Explanation:
0.75 + 0.15c
0.75 + 0.15(45)
= 0.75 + 6.75
= 7.5

Which figure has the front, side, and top views shown?

Answers

Answer:

triangular prism

Step-by-step explanation:

xoxo <3 hope this helped!

what is 10x5/6 pls helppp thank you

Answers

Answer:

The answer has many ongoing 3's so just shorten it to

8.3 or 8.33

Write the equation of the line parallel
to y = 4 /5x + 4/5 that passes through the point ( -6,6).​

Answers

Step-by-step explanation:

Here, slope= 4/5 , As y= mx+c

according to formula, y-y1= m(x-x1)

y-6= 4/5(x+6)

5/4 (y-6)= x+6

5/4y - 15/2= x+6

x- 5/4y + 27/2 =0

12) The angle of depression of a wire attached from the top of a pole to a stake in the ground is 52 degrees If the pole is 62 feet in length, what is the length of the wire to nearest tenth of a foot?

Answers

Answer:

Step-by-step explanation:

A city that has an elevation of -17 meters is closer to sea level than a city that has an
elevation of -40 meters. Agree or disagree?

Answers

Answer:

yes agree

Step-by-step explanation:

because negative 40 is less than negative 17

What is the solution of this system?

Answers

(3,1) is the corect answer
(3,1) is the answer I think also.

8. It takes Emory 3 hours to plant 12 flowers. How long should it take her to plant 40 flowers?

Answers

Answer:

9 hours

Step-by-step explanation:

12 times 3 is 40 so 3 times 3 is 9

Answer:

10

Step-by-step explanation:

takes one hour to plant 4

Are the following triangles similar? Show all work and/or explanations. If so, state the reason (SSS,SAS,AA)

Answers

Yes they are similar, SSS

6th grade work fast and easy

Answers

Answer: 56 times

Step-by-step explanation:

If his ratio of goals to misses is

6:7

then we must find out how many times he missed seeing he scored 48

so

48:?

to solve find out if 6 goes into 48 and it does 8 times so multiply both sides by 8 to get the new ratio

6*8:7*8

48:56

So the new ratio is 48:56 which also means he missed 56 shots

I am building birdhouses for all of my students for an upcoming project. If I complete 2 1/2 birdhouses in 2/3 of an hour of workwhat is my unit rate of birdhouses per bour?

Answers

Answer:

3 3/4

Step-by-step explanation:

convert to decimal

2.50/0.666

=3.75

A group of students are studying two models of solids, liquids, and gases. The students have been given an ice cube that has been dyed blue, and the students are to carefully place the ice cube in a container of room temperature water.Which is the appropriate question to ask prior to the experiment?

A. Will the particles of water lose heat and begin to move faster?
B. Will the particles of ice absorb heat from the water and begin to move faster?
C. Will the particles of ice lose heat to the water and begin to move slower?
D. Will the particles of water gain heat and begin to move faster?

Answers

Answer:

B. Will the particles of ice absorb heat from the water and begin to move faster?

Step-by-step explanation:

*Giving Brainliest* Tickets for the Valentine Dance cost $3 per person or $5 per couple. If $475 worth of tickets were sold and 180 people attended the dance, how many couples were there?

Answers

65. If you look it up on the internet you’ll find out how they got it step-by-step :)

HELP.
What is the best bat All-Time?
-Quatro Pro
-The Goods (2021)
-Marucci 5,6,7
-Voodoo Liquidmetal, etc.
-Other (comment)

Answers

Answer:

Easton Redline Sc500

That is the best bat at all time

Step-by-step explanation:

can someone plz help

Answers

Answer:

-9.56

Step-by-step explanation:

Solve for y. Round to the nearest tenth, if necessary.

Answers

9514 1404 393

Answer:

  9.9

Step-by-step explanation:

The applicable geometric mean rule tells you ...

  y = √(9(9+2)) = √99

  y ≈ 9.9

__

Additional comment

In this geometry, the right triangles are similar. Ratios of corresponding sides are equal.

  hypotenuse/long side = y/9 = (9+2)/y

  y^2 = (9)(11)

  y = √99 . . . . as above

The long leg is the geometric mean of the (adjacent) long segment and the full hypotenuse.

HELP AS SOON AS YOU CAN PLEASE ILL GIVE BRAINLIEST WHEN I CAN ​

Answers

Answer:

SAS

Step-by-step explanation:

In triangle ABC and triangle EFD

1. BC = CD (S) Given

2. < BCD = < EFD (A) being vertically opposite. angles.

3. AC = CE (S) Given

Hence

By SAS postulate Triangle ABC and triangle EFD are congruent.

HOPE IT HELPS :)❤

What is the measurement of angle arc

Answers

Answer:

32°

Step-by-step explanation:

90 - 58 = 32

b = 32°

Answer: 32
90-58 = 32

Line t has slope 3/4 and passes through (0, 0) . Follow these steps:Step
1: Start at (0, 0) Step
2: Move right 8 units​

Answers

Answer:

(8,0)

Step-by-step explanation:

y=mx+b

0=(3/4)0+b

0=b

y=3/4x+0

the point eight units away from (0,0)

is (8,0)

Hope this helps :)

Nancy needs 4/5 of a foot of ribbon to make a bow and she has 4 feet ribbon how many bows can she make

Answers

Answer:

I believe she can make one bow

Step-by-step explanation:

Iso if she has 5 feet of ribbon and only takes four feet of it then that leaves one foot left but if she has a perfect four foot then she can make a ribbon without extra

A portable CD player is on sale.
It is advertised as, “Save $20. You pay
$49.99."
a) What is the regular price?
b) What is the percent decrease?

Answers

a) 69.99
b) .20%
Your welcome

1. El perímetro de la figura que se muestra es:

a. 10x2+20y+8
b. 19x2+16y+16
c. 19x2+20y+16
d. 19x2+20y+8

Answers

Answer:

I think is C 19x2+20y+16

FOR 20 POINTS:
What expression is represented in the model shown below?

Answers

Answer:

I can't see the picture

Step-by-step explanation:

determine the missing angle​

Answers

Answer:

180-77

Step-by-step explanation:

adjacent angles are supp

Answer:

103° | See Attached Image

Step-by-step explanation:

The angle opposite of 77° is vertical (it makes an X, therefore the angles are equal.)

The corresponding angle to the vertical of 77° is also equal to 77°.

X is supplementary to the previously mentioned angle, so it adds up to 180°.

180 - 77 = 103°

Question 24 of 25 Use the quadratic formula to find the solutions to the equation. x² – 3x+1=0

A. 3: 115 4
B. 3 + 2/5 2
C. 2 + √24 2
D. 5 + 10 3​

Answers

I think the answer is B! Hope this helps!

The solutions to the given quadratic equation are (3+√5)/2 and (3-√5)/2.

What is the quadratic formula?

Quadratic formula is the simplest way to find the roots of a quadratic equation.

The roots of a quadratic equation ax² + bx + c = 0 are given by x = [-b ± √(b² - 4ac)]/2a.

The given quadratic equation is x²-3x+1=0.

By comparing x²-3x+1=0 with ax²+bx+c=0, we get a=1, b=-3 and c=1.

Now, x= [3±√((-3)² - 4×1×1)]/2×1

= [3±√(9-4)]/2

= (3±√5)/2

So, the solutions to the given equation are (3+√5)/2 and (3-√5)/2.

Therefore, the solutions to the equation are (3+√5)/2 and (3-√5)/2.

To learn more about the quadratic formula visit:

https://brainly.com/question/11540485.

#SPJ5

What Is y=13-x slope and y intercrept

Answers

Answer: slope -1; y-intercept is 13, (0,13)

Step-by-step explanation:

We rewrite the function as y = -x + 13

y = mx + b; m is the slope, b is the intercept, by comparison, we found that the slope is -1, and the y-intercept is 13.

I want to give away some points so whoever can answer 1+1 your a big brain and deserve the points!

Answers

Answer:

2

Step-by-step explanation:

Answer: 2

Step-by-step explanation: 1 2 3 so 1 + 1 is 2

Evaluate the following i¹⁹⁸

-1

1

√-1

1i​

Answers

Answer:

i^198 is -1

hope I helped :)

Angles a and b are complementary angles symmetry of angle a is 28° more than the measure of angle b find the missing angle measures

Answers

Answer:

31 , 59

Step-by-step explanation:

a = b +28

a + b = 90 {Complementary}

b + 28 + b = 90    {Combine like terms}

2b + 28 = 90       {Subtract 28 form both sides}

       2b  = 90 - 28

       2b = 62      {Divide both sides by 2}

        b = 62/2

       b = 31

a = 31 + 28

a = 59

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