Working alone, Elisa can sweep a porch in 11 minutes. Pranav can sweep the same porch in 13 minutes. Find out how long it would take them if they worked together.

A) 5.96 minutes
B) 5.21 minutes
C) 5.86 minutes
D) 4.87 minutes

Answers

Answer 1

Answer:

Answer is A

Step-by-step explanation:

Elisa, e = 11mins

Prenav, p = 13mins

time to finish, t

1 = t( 1/11 + 1/13) = t (24/143)

Answer 2
Your answer is A 5.96 minutes

Related Questions

7 ÷ ( (-3) + 4) x (-10) - (-8) + 10

Please show work!

Answers

Answer:

The answer is attached to the picture

Answer:

-4

7 ÷ ( (-3) + 4) x (-10) - (-8) + 10

     7÷1×(-10)-(-8)+10

        7÷1×-2+10

         7×-2+10

         -14+10= -4

f(x) = x2 – X – 1
What is the average rate of change of f over the
interval -1 < x < 1?

Answers

Answer:

4/3

Step-by-step explanation:

lect the best answer for the question.
9/11= ?/22

Answers

So the right answer is 18.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Can you help me with this please??

Answers

Answer:

30 degrees

Step-by-step explanation:

A circle is 360 degrees

It is divided into 12 parts

So...

360 divided by 12

equals

30!

Answer: I think its 30 not 100 percent sure

Which of the following is an equivalent representation of 5^-4 ?
A. 1/625


B. 1/9


C. 1/81


D. 1/12


Please I need help quick!!!!

Answers

Answer:

D

Step-by-step explanation:

A square pyramid has a base with a total area of 144m^2 and a volume of 384m^3, what is the slant height of the pyramid?

Answers

Answer:

8m

Step-by-step explanation:

Volume of a square based pyramid = [tex]\frac{1}{3}a^{2}h[/tex] where;

a² is the base area of the pyramid since it is square shaped

h is the slant height.

Given Base area = 144m² and Volume = 384m³, on substituting this values given in the formula we have;

[tex]384 = \frac{1}{3}*144h \\cross\ multiplying\ \\384*3=144h\\h = \frac{384*3}{144} \\h = \frac{1,152}{144}\\ h = 8m[/tex]

The slant height of the pyramid is 8m

evaluate 3^[-2]
extra points

Answers

Answer:

1/9

Step-by-step explanation:

[tex]3^{-2}[/tex] =1/3²=1/9

Triangle ABC is an equilateral triangle. Segment AD measures 18 inches. Which statements about the diagram are correct?
Check all that apply.
1. BD = 9 in.
2. AB = 36 in.
3. DC = in.
4. AC = in.
5. BC = in.

answer: 3,4

Answers

Answer:

3,4

Step-by-step explanation:

I got it right

Answer:

3,4

Step-by-step explanation:

find the value of x​

Answers

Answer:

Step-by-step explanation:

Here we have the length of the hypotenuse (16) and that of the vertical leg (11).  The cosine function inputs this data:

            adjacent side                11

sin x = -----------------------  =  ----------------  =  0.6875

              hypotenuse                 16

We find x using the arccos function:  arccos 0.6875 = 0.81 radians or

                                                                                          46.57 degrees

I would greatly appreciate it if you helped me out

Answers

Answer:no correlation

i think the answer is negative

Which of the following describes how to translate the graph y = lxl to obtain the graph of y = lx + 1l + 1?
shift 1 unit left and 1 unit down
shift 1 unit left and 1 unit up
shift 1 unit right and 1 unit down
shift 1 unit right and 1 unit up​

Answers

Answer:

Step-by-step explanation:

The " +1 " in |x + 1| corresponds with a translation of the graph of the parent function to the left.

The " +1 " at the end corresponds to a translation of the graph of the parent function 1 unit upward.

A rule for creating a pattern is given below. The rule begins with a number called the input and creates a number called the output.
Rule: Divide the input by 3. Then add 7 from the result to get the output.
Which input and output table works for the rule?
Choose 1 answer:

(Choice A, Checked)
A
Input Output
15 11

(Choice B)
B
Input Output
30 3

(Choice C)
C
Input Output
18. 13

Answers

Answer:

its c

Step-by-step explanation:

15/3 equals 5 plus 7 would be 12 so thats wrong

30/3 equals 10 plus 7 would be 17 so thats wrong

18/3 equals 6 plus 7 would be 13 so that right ergo the answer is c

: A marker in the shape of a cylinder has a diameter of 14 mm and a height of 136 mm. Find the volume of the figure described. Use 3.14 for . Round your answer to the nearest tenth, if necessary. *

Answers

Answer:

The volume of the figure is 20,925.0mm^3.

Step-by-step explanation:

Firstly we know that the Diameter = 14mm and Height = 136mm.

Area of Circle = 3.14xR^2    Radius = Diameter / 2

Area of Circle = 3.14x7mm^2 = 153.86mm

Volume = 153.86 x 136 = 20,924.96

Then round, to get 20,925.0

Let me know if this is helpful

Answer:

Volume : ( About ) 20925 mm^3

Step-by-step explanation:

1. If the diameter of this cylinder is 14 mm, the radius ⇒ 14/2 ⇒ 7 mm

2. Now knowing the radius, it would be most convenient to solve for the Base, which is in fact a circle. As we can see, the general Volume of a 3-dimensional figure is Base * height, so this will be helpful. Applying πr^2, Base Area ⇒ π * ( 7 )^2 ⇒ π * 49 π ⇒ 153.86 mm^2

This means that the Volume would be ⇒ Base Area * height ( where height is 138 mm ) ⇒ 153.86 mm^2 * 136 mm ⇒ 20924.96 mm^3

Answer ( Volume ) : ( About ) 20925 mm^3

What is the volume of the square pyramid shown below with sides that are 12.5 m long and a height of 16 m

Answers

I think the answer is 585.68

The coefficient of 6xis

Answers

Answer:

The coefficient is 6

Step-by-step explanation:

The coefficient is the number before the variable

In this case, the variable, or the unknown value, is x.

The number before x is it's co-efficient.

6x

The number before the x is 6

Hope this helps :)

Answer:

6 is the coefficient

Step-by-step explanation:

Coefficient: multiples the variable to some power.

 like for example

3x^2

3 is the coefficient

or

Ax^n

A is the coefficient

Yoko earns 48 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells. Let A be the amount (in dollars) that Yoko earns in a week if she sells B books. Write an equation relating A to B. Then use this equation to find the amount of money Yoko earns if she sells 21 books.

Answers

Answer:61

Step-by-step explanation: 48 +21 = 61

A store sells a coat in three sizes: small, medium and large. The coat comes in red, navy, and tan. Sales numbers are shown in the table.

Find the probability that the next coat sold is a medium.
Write your answer in reduced fraction form.

Answers

Answer:

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

Step-by-step explanation:

Red Medium: 21/58 ( 36.21%)

Navy Medium: 22/66 (33.33%

Tan Medium: 25/66 (37.88%)

Since it's asking for the probability that the next coat is a medium, no matter the color, we add in all numbers and divide it by the added medium from all three colors.

Next coat sold as medium: 68/190 (35.79%) Rounded to the nearest hundredth) or reduced fraction form of 34/95.

PLZ HELP!!! It’s timed

Answers

first one i believe, d
Answer:

D

I hope this helps!!!!!

Simplify and multiply

Answers

Answer:

hahjskxncncjcickmcbfjd

Is it a work or just for fun

n =⟨−2,  −1⟩ and D=[tex]\left[\begin{array}{cc}-3&0\\4&1\\\end{array}\right][/tex]

What is D⋅n?

Answers

Answer:

6

-9

Step-by-step explanation:

-3(-2) + 0(-1)

4(-2) + 1(-1)

6 + 0

-8 + -1

6

-9

*don't forget to add brackets on each side of every calculation okay :)

Can someone help me out with this one i would greatly appreciate it

Answers

Answer:

Surface Area = 2×(5×5 + 5×10 + 5×10) = 250 feet^2

Step-by-step explanation:

When you find the surface area of a cube, you ________ the length of the cube and multiply by 6.
A-square
B-add
C-cube
D-divide

Answers

Answer:

A-square

Step-by-step explanation:

example:

sa=(4cm)^2x6

sa=16x6

sa=96

A square has sides of length 15. What is the length of the diagonal?
А
14/4
B
15/2
C
16/5
D
12/3

Answers

Answer:

15 sqrt(2) =c

Step-by-step explanation:

We can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

The legs are 15 and the hypotenuse is the diagonal

15^2 + 15^2 = c^2

2 * 15^2 = c^2

Take the square root of each side

sqrt(2 * 15^2 )=sqrt( c^2)

sqrt(2) sqrt(15^2) = c

15 sqrt(2) =c

Answer: 15[tex]\sqrt{2}[/tex] (b)

Step-by-step explanation:

You can separate a square into two different 45-45-90 degree triangles.

Where x = 15, and the diagonal would be the hypotenuse.

So, here you can use the Pythagorean Theorem to find the hypotenuse to use 45-45-90 triangle theorem where they hypotenuse is always x times [tex]\sqrt{2}[/tex]

So, the diagonal would be 15[tex]\sqrt{2}[/tex]

A customer deposits $500 in an account that pays 4% annual interest. What is the balance after 3 years if the interest is compounded annually? Compound interest formula: V (t) = P (1 + StartFraction r Over n EndFraction) Superscript n t t = years since initial deposit n = number of times compounded per year r = annual interest rate (as a decimal) P = initial (principal) investment V(t) = value of investment after t years

Answers

Answer:

$562.43

Step-by-step explanation:

V(3) = [tex]500 ( 1 + \frac{0.04}{1} )^{3} \\500 (1.04)^{3}[/tex]

     = 562.43

The interest is $562.4 compounded annually.

What is Compound interest?

Compound interest is defined as interest paid on the original principal and the interest earn on interest of principal.

P = $500

r = 4%

t = 3 years

CI = P( 1+ r/100)ⁿ

CI = 500 ( 1+ 4/100)³

CI = 500 ( 1+ 0.04)³

CI = 500 ( 1.04)³

CI = 500 ( 1.1248)

CI = 562.4

Hence, the interest is $562.4 compounded annually.

Learn more about Compound interest here:

brainly.com/question/25857212

#SPJ5

WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER

Answers

Answer:

y=20

Step-by-step explanation:

Y=20 because 120 divided by 6 equals 20

Please help and answer all the question too

Answers

To find the volume you use the formula—> length x width x height.

For the first problem you’ll solve 5 x 3 x 2 which is 30.

For the second one you’ll do the same thing. For this one you’ll do 3 x 3 x 2 which is 18.

Answer:

1) 30 units³

2) 18 units³

Step-by-step explanation:

1) The formula for volume is v = height x length x width

The height of the first object is 2, the length is 5, and the width is 3.  2 x 5 x 3 is 30, so the volume is 30 units ³.

2) Use the same formula, v = h x l x w

The height is 3, the length is 3, and the width is 2.

3 x 3 x 2 = 18

So the volume is 18 units³.

Note: Find each of the values by counting the number of squares

Find the similarity ratio of a prism with surface area 36 feet squared to a similar prism with surface area 225 feet squared

Answers

Answer:   6:15___{2:5}

The reduce it by dividing by 3.

6/3 =2.

15/3 =5.

= {2:5}

What is the volume of the right rectangular prism?
9 mm
ווווןןם
8 mm
23 mm
46 mm
NEED ASAP

Answers

Answer:

V=whl

Step-by-step explanation:

goole hope this helps

Answer:

C) 432 mm^3

Step-by-step explanation:

length*width*height= Volume

8*6*9= 432

3 out of 5 students say yes if there are 105 students how many say yes

Answers

Answer:

63 students said yes.

Step-by-step explanation:

105/5= 21

21*3= 63

Answer:

C = 63

Step-by-step explanation:

We know that there are 105 students, so we will take the total amount of students and multiply by 3/5, since this is the probably rate is which say yes. in other words --> 105 * 3/5 = 63

Find the volume of the cylinder

Answers

Answer:

53 yds

Step-by-step explanation:

Volume= base*height

V= 10*3.5

V= 35

Answer:

3,141.59

Step-by-step explanation:

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