One pump can fill a swimming pool in 8 hours and another pump can fill it in 10
hours. If both pumps are opened at the same time, how many hours will it take to fill
the pool?

Answers

Answer 1

Answer:

it would take 18 hours to feel the pull

Step-by-step explanation:

8

10 would equal to 18

Answer 2
It will take 3 hours and 20 minutes

Related Questions

which numbers round to 40 when rounding to 10s?

Answers

Answer:

35, 36, 37, 38, 39, 41, 42, 43 and 44

Step-by-step explanation:

Everything above 5 rounds upwards, and all numvers below 5 rounds down. So 34 and down will be rounded to 30, and that's what happens with 44, 43, 42, and 41.

Find f'(x) (the derivative of f(x)) if f(x) = 7x'3 - 2x'2 + 4x - 5.
Option A: 21x^2-4x+4+C
Option B: 21 x^2-4x+4-5
Option C: 21 x^2-4x+4
Option D: 21x^2-4x+4-5/x

Answers

that would be the correct answer

Cho biết DABC ∽DMNP theo tỉ số 2/3 và chu vi của DABC là 12cm. Chu vi của DMNP là .Kết luận đúng là:


A.
4,5 cm

B.
7,5 cm

C.
8cm

D.
18cm

Answers

Answer:

C

Step-by-step explanation:

Answer question is C

The graph of a sinusoidal function intersects its midline at (0, -7) and then has a minimum point at (pi/4, -9)

Answers

Answer:

I don't know if you have any questions or need any further information please contact me at the sun with the sun with the sun with the sun

what is the constant rate of change of the function represented in the table?

X: -5 -1 3 7
Y: 23 7 -9 -25

PLEASE ANSWER QUICKLY AND ACCURATELY WILL MARK BRAINLIEST

Answers

Answer:

-4

Step-by-step explanation:

please tell me if u need explaination

-4
i just did it in calculator

A map is drawn to a scale of 1 : 240 000.

(i) If a seawater lake has an area of 3.8 cm² on the map, find its actual area in square kilometres.
(ii) If the actual area of a plot of land is 2 908 800 m², calculate its area on the map. ​

Answers

Step-by-step explanation:

Above are the explanations

A map is drawn on a scale of 1: 240 000.

(i) Actual area [tex]$=21.888 \mathrm{~km}^{2}$[/tex]

(ii) Area on the map = [tex]$0.505 \mathrm{~cm}^{2}$[/tex].

How to estimate the area on the map?

(i) 1 cm: 240000 cm = 1 cm: 2.4km

Area scale [tex]$=1^{2} \mathrm{~cm}^{2}: 2.4^{2} \mathrm{~km}^{2}$[/tex]

[tex]$=1 \mathrm{cm}^{2}: 5.76 \mathrm{~km}^{2}$[/tex]

[tex]$1 \mathrm{~cm}^{2}: 5.76 \mathrm{~km}^{2}$[/tex]

[tex]$3.8 \mathrm{~cm}^{2}: 21.888 \mathrm{~km}^{2}$[/tex]

Actual area [tex]$=21.888 \mathrm{~km}^{2}$[/tex]

[tex]$=21.9 \mathrm{~km}^{2}[/tex]

(ii) 1 cm: 240000 cm = 1 cm: 2400 m

Area scale [tex]$=1^{2} \mathrm{~cm}^{2}: 2400^{2} \mathrm{~m}^{2}$[/tex]

[tex]$=1 \mathrm{~cm}^{2}: 5760000 \mathrm{~m}^{2}$[/tex]

[tex]$1cm}^{2}: 5760000 \mathrm{~m}^{2}$[/tex]

[tex]$0.505 \mathrm{~cm}^{2} ; 2108800 \mathrm{~m}^{2}$[/tex]

The area on the map = [tex]$0.505 \mathrm{~cm}^{2}$[/tex].

To learn more about the area on the map

https://brainly.com/question/24103758

#SPJ2

If f(x) = -3x - 2
find f(-7)

Answers

Answer:

19

Step-by-step explanation:

this question means you have to place the value of -7 were there's x in the function.

f(-7)=-3(-7)-2

=21-2

=19

I hope this helps

it’s 19! have a good day!! xoxo

Plz answer fast! Tell the correct answer(both parts), or else I will report you.

Answers

Answer:

d1 = -1.5

dn = dn-1 *-4

Step-by-step explanation:

-1.5, 6, -24,96

The first terms is d1

d1 = -1.5

To find the common ratio divide the second term by the first term

6/-1.5 = -4

Check 6*-4 = -24

-24*-4 = 96

dn =dn-1 * -4

Answer:

D (1) = -1.5        

D (n)= dn-1 *-4

Step-by-step explanation:

I know ;) hope this helps.

Integrate the following. ∫[tex]5x^{4} dx[/tex]
Option A: [tex]x^{5}[/tex]
Option B: [tex]5x^{5} +C[/tex]
Option C:[tex]5x^{5}[/tex]
Option D: [tex]x^{5} + C[/tex]

Answers

Answer:

[tex] \displaystyle D) {x}^{5} + \rm C[/tex]

Step-by-step explanation:

we would like to integrate the following Integral:

[tex] \displaystyle \int 5 {x}^{4} \, dx [/tex]

well, to get the constant we can consider the following Integration rule:

[tex] \displaystyle \int c{x} ^{n} \, dx = c\int {x}^{n} \, dx[/tex]

therefore,

[tex] \displaystyle 5\int {x}^{4} \, dx [/tex]

recall exponent integration rule:

[tex] \displaystyle \int {x} ^{n} \, dx = \frac{ {x}^{n + 1} }{n + 1} [/tex]

so let,

[tex]n = 4[/tex]

Thus integrate:

[tex] \displaystyle = 5\left( \frac{ {x}^{4+ 1} }{4 + 1} \right)[/tex]

simplify addition:

[tex] \displaystyle = 5\left( \frac{ {x}^{5} }{5} \right)[/tex]

reduce fraction:

[tex] \displaystyle = {x}^{5} [/tex]

finally we of course have to add the constant of integration:

[tex] \displaystyle \boxed{ {x}^{5} + \rm C}[/tex]

hence,

our answer is D)

The answer is D I just had this on a test.

Could someone help me with (Q 15?) Maybe a brainliest if you do step by step and get the correct answer. Thank you :D

Answers

Answer:

It is a reflection  across the y axis

Step-by-step explanation:

The reflection of point (x, y) across the x-axis is (x, -y).

The reflection of point (x, y) across the y-axis is (-x, y).

Since (-4, -2.4) becomes (4, -2.4)  The x values changes sign.  It is a reflection  across the y axis

The answer would be the y axis. Because point a is on the negative x and y side of the graph while B is on the positive x and negative y side of the graph . So to get the answer you would have to flip it over the y axis.

30 POINTS PLS HELP
Solve for x: −7 < x − 1 < 8

A. 6 < x < 9
B. −6 > x > 9
C. 6 > x > −9
D. −6 < x < 9

Answers

The answer is D have a good day
The answer to this question is D

Can anyone please help?

Answers

Answer:

see below

Step-by-step explanation:

<4 and <7 are same side interior angles since they are on the same side of the transversal p and between parallel lines m and n

<4 and <12 are corresponding angles since they are on the same side of the parallel lines p and t and on the same side of the transversal m

<14 and <7 are alternate interior angles since they are between the parallel lines p and t and are on opposite sides of the transversal n

<4 and <1 are vertical angles since they are formed by the same lines and share a vertex and are opposite each other

Answer:

<4 and <7 are same side interior angles since they are on the same side of the transversal p and between parallel lines m and n

<4 and <12 are corresponding angles since they are on the same side of the parallel lines p and t and on the same side of the transversal m

<14 and <7 are alternate interior angles since they are between the parallel lines p and t and are on opposite sides of the transversal n

<4 and <1 are vertical angles since they are formed by the same lines and share a vertex and are opposite each other

Step-by-step explanation:

Sorry for the bother help plz

Answers

Answer:

216 a^6

Step-by-step explanation:

(6a^2)^3

We know (xy)^z = x^z * y^z

6^3  * a^2^3

216 a^2^3

We know x^y^z = x^(y*z)

216 a^(2*3)

216 a^6

Meg plotted the graph below to show the relationship between the temperature of her city and the number of people at a swimming pool:


Part A: In your own words, describe the relationship between the temperature of the city and the number of people at the swimming pool. (5 points)

Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate slope and y-intercept. (5 points)

Answers

Answer:

Generally, the higher the temperature, the larger the population.

Step-by-step explanation:

The line goes from left to right, and from down to up, so we can see that the temperature affects the population at the pool.

the higher temperature the higher the population would be

The answers plzzz I need help

Answers

Haha I seem to fish with bread

Write an equation to represent each function.

(image attached)

Answers

5. the answer is y=1x+3
4) y=7x 5) y=x+3 i don’t know what else to put here but it told me i need at least 20 characters

Modeling Real Life

Question:

At a town hall meeting, 37/50 of the members are present. Of those who are present, 1/2 vote in favor of a new park. What fraction of the members do not vote in favor of the new park?
Fraction:_______

Answers

Answer is 17.5
Half 37.5
Put it into a decimal
The answer is 17.5 hopes this help

There is a blueprint for a house that is a scale drawing for the entire house. One part of the house has a triangular base. The drawing of the width of the triangle is 4cm and the length is 6cm. If the width of

Answers

what’s the width? i think the question was cut off

Plz Help me Asap. And explain

Answers

Answer:

n=(1/6) or n=-5/2

Step-by-step explanation:

|6n+7|=8

6n+7=8 or 6n+7=-8

6n=1 or 6n=-15

n=(1/6) or n=-5/2

Yausjsbsjajajianaghaakajjjsjsksmsns

I need help with these questions from 11 to 20. I already did questions 1 through 10 with my math teacher but I'm not in school so please please please answer all of these answers it would mean a lot to me and would help me a lot with the math homework I need to get done, so yeah. Please help.

Answers

Hope this helps :D

11 is 6 and 3
12 is coefficient
13 is variable
14 is 82b and 3u^2 and 7 and 41h and 54
15 is 9r and 2g
16 is exponent
17 is constant
18 is 21 and 8 and 3
19 is r and g and n
20 is a term
13 answer is
The number and element

Function f(x) =ax +b where a and b are integers and a<0 has a domain 1

Answers

Answer:

sorry i read the question wrong and put a wrong answer im not sure how to delete

Step-by-step explanation:

Im not understanding the question

​One-quarter of the top of a round wedding cake is covered in yellow roses. The top of the wedding cake has a diameter of 12 inches. Each yellow rose covers an area of 0.75 square inch. About how many roses were used to cover this section of the cake?

PLZ ANSWER QUICKLY AND ACCURATLY WILL MARK BRAINLIEST

Answers

Answer:

I believe the answer to your question is 38.

Step-by-step explanation:

Here is what I did: First, I found the radius, and to do that, I did 12 divided by 2, which gave me 6. then I did 6 divided by 2, to find the radius, of the radius I just found.  which gave me 3, then I did 3 times 12, which gave me 36, so the answer should be 38 :)

Answer:

8

Step-by-step explanation:

Please help me! There is graph an I out them as pictures!

Answers

First one:
A: (1 , 2)
B: (-0.5 , 1)
C: ( 0.5 , 1)
Second one:
A: (-1, 2)
B: (0.5, 1)
C: (0.5 , -1)
first graph
a: (1, 2)
b: (-0.5, 1)
c: (0.5, 1)

second graph
a: (-1, 2)
b: (0.5, 1)
c: (0.5, -1)

Find the radius, diameter, circumference and the approximate area for the circle in the image attached. To find the approximate area, please use 3.14 for π. SHOW WORK!

Answers

Radius: 3cm —> the radius is the line connecting the middle of the circle to the end of the circle

Diameter: 3cm * 2 = 6cm —> the diameter is a straight line between one end of the circle to the other end through the midpoint. All you have to do is multiply the radius by 2!

Circumference: π • d —> 3.14 • 6 = 18.84cm —> the circumference of a circle is the measurement of the outline

Area: πr^2 = 3.14 • 3^2 = 3.14 • 9 = 28.26cm^2 —> the area is the entire circle!
Heres the answer
Hope it helps !

A DVD is on sale for $1.05 off. This is a 15% discount from the original price. Use an equation to find the original price. A. $16.05, B. $15.75, C. $10.50, D. $7.00

Answers

He got summer school

D $7
0.15x=1.05

$16.05 • 0.15=2.4075
$15.75 • 0.15 =2.3625
$10.50 • 0.15 = 1.575
$7.00 • 0.15 = 1.05

Identify the constant of proportionality from the table.

X: 4, 5, 7, 9
Y: 32, 40, 56, 72

Answers

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Answer:

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Step-by-step explanation:

HELP this stem and leaf plot represents test scores of students in a math class if two test score 68 and 75 are added to the data which statement will be true

Answers

Is there supposed to be answer choices?

First you would need to find the median, mode, and range.

60 68 68 71 71 72 75 75 75 83 83 85 87 87 89 90 95 95 98 98

due to no answer choices, I am going to show you the basics of the plot before the 2 scores are added.

Answer:

Option A) The Median will change; the mode will stay the same

Step-by-step explanation:

Just did the Test on T4L and got it right :) Hope this helped (Pls mark me as brainliest)

Find the area of each figure. Round to the nearest tenth if necessary.

Answers

Shape 1: TRIANGLE

Formula: A = 1/2 x bh

1/2 x (10)(5) = 25

AREA: 25 square yards

Shape 2: RECTANGLE

Formula: A = lw

(12)(10) = 120

AREA: 120 square yards

Sum (ADD)

25 yd^2 + 120 yd^2 = 145 yd^2

The area of the composite figure is 145 yd^2

Shape one / triangle:

the formula for triangles is a =1/2 x bh

5x10 = 50

50 x 1/2= 25

So the area for shape 1 is 25.

Shape two / rectangle :

the formula for quadrilaterals is a = bh

12 x 10 = 120

so the area of shape 2 is 120

HEEEEELLLLLLPPPPPPPPOP

Answers

4(x-8) = 4x-4*8

= 4x - 32

Answer:

4(x-8) = 4x-4*8

= 4x - 32

Step-by-step explanation:

5/10+8/100
I NEED HELP PLSSSS

Answers

Answer:

1 58/100 or 1 29/50 (simplified)

Step-by-step explanation:

you can turn them into decimals

5/10 = 0.5

8/100 = 0.08

0.5 + 0.08 = 0.58

0.58 = 58/100 = 29/50

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