30 men repair a road in 56 days by working 6 hours daily. in how many days 45 men will repair same road by working 7 hours daily?

Answer:

The water level is dropping at a rate of 0.24 ft/s

Step-by-step explanation:

Here, we simply want to calculate the change in depth (height of the cone) , given the volume change

Mathematically, we have the volume of a cone as;

V = 1/3 * π * r^2 * h

we are given dv/dt as 12 ft^3/m

dv/dh = 1/3 * π * r^2

Substituting the value for the radius, we have

dv/dh = 1/3 * 22/7 * 4^2 = 50.29

dh/dt = dh/dv * dv/dt

dh/dv = 1/(dv/dh) = 1/50.29

Thus,

dh/dt = 1/50.29 * 12

dh/dt = 0.24 ft/s

Answer:

Step-by-step explanation:

let the number be x

20-x/2=10

40-x=20

40-20=x

x=20

Answer:  MP = 2

========================================================

Work Shown:

LK = 1 is given

LK = KN since the diagonals of a parallelogram bisect one another. The same can be said about PK = KM.

Since all squares are a rectangle, this means LN = MP. Any rectangle has its diagonals be congruent.

So,

LN = LK+KN

LN = 1+1

LN = 2

MP = LN

MP = 2

Answer:

no

Step-by-step explanation:

No 0.01 is not less than 0

Because 0 means nothing

And

0.01 means have something

So

0.01>0

Answer:

1,570

Step-by-step explanation:

10×2=20

20×3=60

30×5=150

40×7=280

50×4=250

60×3=180

70×8=630

Now,

20+60+150+ 280 +250+ 280+ 630=1,570

this is the answer

Answer:

[tex] \huge{ \boxed{ \bold{ \tt{45.31}}}}[/tex]

❀ Explanation :

✑ Let's Know about A.M ( Arithmetic Mean )

In statistics , a single number can be calculated from a group of data which shows the character of the whole data. This number is called the average of the while data. An average is also called the arithmethic mean or simply mean which is a measure of central tendency.

☄ To calculate the average of the given type of data ( discrete series )  , follow the steps given below :

✐ Remember :

[tex] \underline{ \boxed{ \sf{mean \: = \frac{Σfx}{Σf} \: or \: \frac{Σfx}{n}}}} [/tex]

Where , Σf = N = Sum of the frequency and the symbol ' Σ ' ( sigma ) means " summation of " .

( See the workings in attached picture )

Hope I helped!

♪ Have a wonderful day / night ツ

~~

Answer:

x = 55 degrees

Step-by-step explanation:

180 - 164 = 16. 16 + 109 = 125. A triangle's angles should add up to 180, so to find the value of x, subtract 180 by 125 and you'll get 55.

Answer:55

Step-by-step explanation:

Steps below

Answer:

d = -12

Step-by-step explanation:

Add -8 -5 +7

take that number : -6

72 divided by -6 = -12

d = -12

Answer:

A.  29.4

Step-by-step explanation:

5(3 1/5 + 2 4/5) - 0.6

5(6) - 0.6                                      parenthesis

30 - 0.6                                        multiplication

29.4                                              subtraction

Step-by-step explanation:

I think it is $4,821 because that is what I got as an answer. I hope this helped!

Answer:

x + y = 27

y = x - 3

Step-by-step explanation:

x = # of girls

y = # of boys

first there are a total of 27 students so # of girls plus # of boys has to be 27.

then number of boys is 3 less than number of girls. This means x - 3 = y or y = x-3

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Answer:

pentagon

is 14 units

cannot be determined

Step-by-step explanation:

Answer:

Step-by-step explanation:

Use the polygon on the coordinate plane to complete the statements. This polygon is a The length of - Brainly.com

yw thanks for the points have a nice day :}

Answer:

[tex]3(-2m + 3)[/tex]

Step-by-step explanation:

Given

[tex]-6m + 9[/tex]

Required

Factorize

Expression: [tex]-6m + 9[/tex]

Start by expressing the expression as a sum of products.

[tex]-6m = 3 * -2m[/tex] and

[tex]9 = 3 * 3[/tex]

So;

[tex]3 * -2m + 3 * 3[/tex]

Notice that constant 3 is common in both terms.

This can then be factorizes as:

[tex]3(-2m + 3)[/tex]

Hence:

[tex]-6m + 9 = 3(-2m + 3)[/tex]

Answer:

3(-2m+3)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Do a calculation

Area -78 cm²

perimeter-58

green=53/78

blue=23/78

Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest

The bird is made of 79 squares each square is 1u^2(u=unit, either cm or inch)

the area of the bird is 79u^2

the perimeter is 64u^2 you count all edges

51/79 squares are green, 51u^2

26/79 squares are blue, 26u^2

Answer:

35.6 miles per gallon.

I'm not sure but good luck :)

Step-by-step explanation:

Answer:

Just realized I gave you the wrong answer. Here's the right one below:

Step-by-step explanation:

(44 1/2)/(1 1/4)

(89/2)/(5/4)

(89/2)(4/5)

178/5

35 3/5 mpg

Sorry about that! :)

Answer:B

Step-by-step explanation:

Answer:

[tex]5 {g}^{2} - 11 {g}^{} + 8[/tex]

Step-by-step explanation:

[tex]this \: is \: your \: answer \: ie \: option \: b \\ hope \: it \: helps \\ need \: thanks \: and \: brainliest...[/tex]

Answer:

at right angles

Step-by-step explanation:

Answer:

well for me I think

Step-by-step explanation:

4/3×120

480/3

160

Answer:

224

Step-by-step explanation:

1. first divide 8/2 in the parentheses which will give you 4

2. Then multiply 4 to 8 which will give you 32

3. finally multiply 32 to 7 which will give you an answer of 224

Answer:

x = 3

Step-by-step explanation:

6x - 7 = 11

First, add 7 to 11 which gets you 6x = 18

Then, divide 18 by 6 to solve for x which gets you 3

This means that x = 3

(hope this helps)

Answer:

Step-by-step explanation:

6x-7+11

(add 7 to both sides, canceling out the negative 7 on the left, and resulting in a sum of 18 on the right)

6x=18

(divide both sides by 6, which should isolate x because the sixes will cancel each other out, and give you a quotient of 3 on the right side)

x=3

Answer:

Step-by-step explanation:

Given

Upload time of 1 min video

Time to upload of 22 min video

Answer:

The probability is 1/36

Step-by-step explanation:

Since we have two dies rolled together, the sample space is 36

What we mean by the sample space is the number of total possible results

So the total number of results that we can get is 36

Out of all our result, 3,3 can only appear once

so the probability of getting 3,3 on both dice is 1/36

Answer:

1/36

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

Answer:

Katherine will pay $55.24.

Step-by-step explanation:

32.78 + 27.24 + 5.22

= 65.24

65.24 - 10

= 55.24

Katherine will pay $55.24.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

9x + 22y ≥ 220

x + y ≤ 16

Step-by-step explanation:

First x is number of hours washing cars and y is number of hours tutoring.

He makes $9 per hour on cars, $22 per hour tutoring. So we use variables as substitutes for actual values.

That is 9x + 22y. He can't make less than 220, so use the sign greater or equal to 220.

He also must work no more than 16 hours. Total hours is x+y, and no more than 16 means use the sign less than or equal to.

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The number of hours washing cars and number of hours tutoring, if Blake is working two summer jobs, making $9 per hour washing cars, making $22 per hour tutoring, are 10.2 and 5.85 respectively. The graph is also attached below.

A mathematical statement that has an "equal to" symbol between two expressions with equal values is called an equation. As in, 3x + 5 Equals 15, instances.

Given:

Blake is working two summer jobs, making $9 per hour washing cars, making $22 per hour tutoring,

Total working hour = 16

Total money to be earned = $220

Write the equation of the above statement as shown below,

x + y = 16

9x + 22y  = 220

Solve the above equation using a graph,

y = 5.85 and x = 16 - 5.85 = 10.2

To know more about equation:

https://brainly.com/question/12788590

#SPJ2

Answer:

B, A, B

Step-by-step explanation:

Answer:

the answer is 34.

Step-by-step explanation:

the Phythagorean theorem is a^2 + b^2 = c^2.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. thank you and have a nice day!