if it takes 3 men 5 hours to dig 12 holes, how many hours does it take for 3 men to dig 84 holes?

Answers

Answer 1

Answer:

Hence it will take 35hours

Step-by-step explanation:

Let the time it took to dig hole be x

Ley the number of holes be n

Using the relationship x = kn (direct relationship)

if it takes 3 men 5 hours to dig 12 holes, hence;

when x = 5, n = 12

k = x/n

k = 5/12

To get how many hours it take for 3 men to dig 84 holes, then;

when n = 84, x = ?

x = 5/12 * 84

x = 5 * 7

x = 35hours

Hence it will take 35hours


Related Questions

I give you 35 points, PLS HELP!!

If CD = 8√3, find AE

Answers

Answer:

not 35

Step-by-step explanation:

it 18

Please help if you know it. don't raid me for points

-user

Answers

1. x + 6 = 8

8 - 6 = 2

x = 2

2. 12 + y = 21

21 - 12 = 9

x = 9

3. h - 7 = 13

13 - 7 = 6

x = 6

4. 35 = 50 - 15

p = 50

5. 17 = 8 + 9

e = 8

6. 0 + 10 = 10

k = 10

Hope this helps! Have a wonderful day!

Dirk bought a set of stamps. The number of stamps in the set he bought is divisible by 2, 3, 5, 6, and 9. Which set is it?

Answers

Answer:

Germany - 90

Step-by-step explanation:

Here are the options to this question

Germany 90

Sweden   78

Japan       63

Canada    75

The appropriate answer should be a multiple of 2, 3, 5, 6, and 9. That is when the number is divided by 2, 3, 5, 6, and 9 it should have a remainder of zero.

90 / 2 = 45

90 / 3 = 30

90 / 5 = 18

90 / 6 = 15

90 / 9 = 10

Thus, the appropriate number is 90

When 78 is divided by 5 and 9, the remainder is not zero

When 63 is divided by 2, 5 and 6, the remainder is not zero

When 75 is divided by 2, 3, 6 and 9, the remainder is not zero

PLZ HELP WILL GIVE BRAINLIEST

Answers

The first one (x+4)(x+4)

What is b in the equation 15 + b = 23?

Answers

you would do 23-15 to get b

6x – 2х + 8у – 6y simplified expression

Answers

Answer:

4x+2y

Step-by-step explanation:

6x is the answer to this question

List 2 pairs of Alternate Interior Angles shown in the diagram below. Show Your Work 12 34 56 78 m​

Answers

Answer:

I th8nk it means diagonal like 1 and 4 or 2 and 3

D=u^2/2a
u=30.6 correct to 3 significant figures
a=5.2 correct to 2 significant figures

a) Calculate the upper bound for the value of D. Give your answer correct to 6 significant figures.

The lower bound for the value of D is 88.8860 correct to six significant figures.

b)
i) By considering bounds, write down the value of D to a suitable degree of accuracy.
ii) Give a reason to your answer

Answers

a)

30.65^2/(2*5.15)=91.2061

d=91.2061

b)i)90

ii) Mathswatch is critical of anything apart from it's system so I dont know what the answer is for this one

a.
What does the graph tell you about the boat ride?
b. For the graph find the domain and range.
C.
For the function d (above), how is the slope of the graph to the left of the vertex related to
the slope of the graph to the right of the vertex?

Answers

I’m not sure what the answer is, just trying to get points.... but I hope you find your answer :)

Please help don't answer just for points please'




Zoom in to see clearer :)​

Answers

Answer: It’s c .......

Please help, it would mean the world

Answers

1. 12x+ 21
2.88x-33
3.-15x+(-10)

which rectangle represents dilation by a scale factor of 2 from the rectangles center?

Answers

Answer:

Original coordinates of F is (2,1)

Step-by-step explanation:

when DEFG is dilated by a scale factor of 1/2 with a dilation center of (0, 0), coordinates of point F' will be

( 2 x 1/2, 1 x 1/2 ) = ( 1, 1/2 )

Rob saves £500 in his bank account.
The bank pays 4% simple interest
per year.
a) How much interest will he have
earned after five years?
b) How much money will he have in
the bank after five years?

Answers

Answer:

step 1: =4% of £500

=20

=20 × 5 years

= 100

= £500 + £100

=£600 ....therefore Rob will have £600 in his bank account after years.

a) Find the value of 1 + 3x when x = 1
b) Find the value of 7 - 2x when x = -3​

Answers

the first one is 4 and the second one is 13

solve using quadratic equations (x+3)^2=25

Answers

Answer:

x=2 or x=−8

Step-by-step explanation:

Pls help

The circle below has a diameter of 164 inches.

a) Find the circumference of the circle. Use 3.14 to approximate pi. Please show your math work step by step and don’t forget the unit. (Calculator is allowed but please write down the numbers that you enter into your calculator).

b) Find the area of the circle. Use 3.14 to approximate pi. Please show your math work step by step and don’t forget the unit. (Calculator is allowed but please write down the numbers that you enter into your calculator).

Answers

Answer:

The circle is the radius divided by equal, so it is the same as the other section meaning 16 as well

Step-by-step explanation:

Add the two ends to the result 32

Answer:

Step-by-step explanation:

yea what she said

El 35 % de los estudiantes de un centro docente practica el fútbol. El 70 % de los que practican el fútbol estudia Matemáticas, así como el 25 % de los que no practican el fútbol

Answers

Answer:

El 40.75% de los alumnos del centro docente estudian matemáticas.

Step-by-step explanation:

Dado que el 35 % de los estudiantes de un centro docente practica el fútbol, y el 70 % de los que practican el fútbol estudia Matemáticas, así como el 25 % de los que no practican el fútbol, para determinar los porcentajes de estudiantes de matemáticas en el centro docente se debe realizar el siguiente calculo, suponiendo que el total de alumnos del centro sea 100:

35 x 70 / 100 = 2,450 / 100 = 24.5%

100 - 35 = 65

65 x 25 / 100 = 1,625 / 100 = 16.25%

24.5 + 16.25 = 40.75

Así, el 40.75% de los alumnos del centro docente estudian matemáticas.

What is the smaller zero of y = x2 - 6x + 8?

Answers

= 7x - 8 this is it the answer

PLEASE ANSWER ASAP!!!!Find


Find f(-2) if f(x) = x^2 + x + 7

Answers

Answer:

9

Step-by-step explanation:

1.4 plus what equals 0.9

Answers

Answer: 2.3

Step-by-step explanation:

Calculator

Answer:

-0.5

if 1.4-0.9=0.5

1.4+(-0.5)=0.9

I WILL GIVE YOU BRAINLIST NEED HELP ASAP
The object below is made of six identical rectangular prisms. The overall dimensions of the composite solid are 24 inches (in.) by 24 inches by 6 inches. What is the volume, in cubic inches, of a single prism?
A
16in.3
B
96in.3
C
192in.3
D
576in.3

Answers

Answer is D

It’s D because if you multiply each side of the object (How to determine volume) then divide by six (because they want the volume of just one square and there is six squares) Then you get 576

Volume of the single prism will be : 576 inches

What is a Rectangular Prism ?

In geometry a Rectangular prism is a polyhedron with two congruent and parallel bases. It has six faces and have twelve edges.

Volume of a Rectangular prism = L * B * H

                                                      = 24 * 6 * 24

                                                    = 3456 inch^3

Since , it consists of six identical Rectangular prisms

Volume of single prism will be  = 3456 / 6

                                                      576 inch^3

                 

Learn more about  Rectangular Prism:

https://brainly.com/question/21308574?referrer=searchResults

#SPJ2

The length of a rectangle can be represented by the expression (2 - 1) and the width can be
represented as (x + 3). The area of the rectangle is 12 square feet. Set up an equation that
could model this information, Solve the quadratic equation to determine a possible value for x,






PLS HELP ME AND IF YOU CAN SHOW HOW U GOT THE ANSWER IF NOT THATS OKAY!!! ILL ALSO MARK YOU BRANLIEST IF YOU HELPED ME!!! <333

Answers

Answer:

Step-by-step explanation:

The length is (x-1), not (2-1).

area = (x-1)(x+3) = 12 ft²

x²+2x-3 = 12

x²+2x-15 = 0

(x+5)(x-3) = 0

x = -5, 3

-5 is an extraneous solution, so x=3.

Length = x-1 = 2 feet

Width = x+3 = 6 feet

Open Ended Alexandra is working on a float for a parade She is making a sphere out of paper mache She knows the circumference of a cross section through the center of a sphere. How can Alexandra find the radius of the sphere?​

Answers

Answer:

r=C2

Step-by-step explanation:

C=2r is the equation to find circumference

She needs to work backwards in this case, so:

r=C2

r=The circumference she knows x 2 x 3.14(or 3.14159265359)

-----------------------------------------------------------------------------------------------------------------

I would recommend writing/typing all of this(Especially if you need to show you work)!

I hope this helped!

Find the area of the shaded part of the triangle below. Round to the nearest tenth if needed.

Answers

Answer:

212.5

Step-by-step explanation:

For triangles, A = (bh)/2

You can do 15+25 to find the base, which is 40. From here do 17*40/2. You get 340. However, you need to remove the right triangle on the left side.

Again do 17*15/2, which you get 127.5.

From here subtract 127.5 from 340 and get 212.5

Answer:

Step-by-step explanation:

What is the area of the figure below?

Answers

Answer:

d.

Step-by-step explanation:

102 in.² should be the answer

f m<1 = 2x + 3 and the m<4 = 3x + 2, then find the m<3.

Answers

Answer:

https://www.mrelisara.com/uploads/5/8/7/3/58736993/chapter_2_review_ws_answers.pdfStep-by-step explanation:

Write the equation of the line in fully simplified slope-intercept form.​

Answers

Answer:

y=-1/2x-1

Step-by-step explanation:

Which is equal to√4/5?
2√10/5
2√5/5
√20/5
√20/√25

Answers

Answer
The second one


Explaintion
Trust me

Answer:2√5/5

Step-by-step explanation:

Multiply 2√5  by √5√5

Combine and simplify the denominator.

2√5divide5

The result can be shown in multiple forms.

Exact Form:

2√5/5

.

60 as a product of its prime factors

Answers

2.3.5 = 60 are the prime factors in ascending order , give us a like if I helped :)

2+7+12+17+22+27 sigma notation

Answers

Answer:

87  ?

Step-by-step explanation:

It will be 87 for sureeeeeeee
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