(b) Water flows into the tank at a rate of 30 litres per minute. Calculate the time taken to fill an empty tank. Give your answer to the whole minute. (1 litre = 1000 cm')​

Answers

Answer 1

Answer:

Step-by-step explanation:

We need to know the volume of the tank.  If the volume, X (in liters), is given in cm^3, convert the value to liters (1 liter = 1,000 cm^3).  Then take the tank volume and divide by 30 liters/min:

X liters/(30 liters/min) = X/30 minutes


Related Questions

1. The table shows the prices of 3 boxes of laundry detergent of different sizes. Which size box costs the least per ounce? Explain your answer. Size Price 150 OZ 100 oz $18.97 $11.97 $8.97 56 OZ​

Answers

The table is an illustration of unit rates

Box 2 has the least price per ounce

How to determine the least per ounce

The given parameters are:

Box 1 = $18.97 per 150 Oz

Box 2 = $11.97 per 100 Oz

Box 3 = $8.97 per 56 Oz

Divide the price by the sizes, to get the rates

[tex]Box 1 = \frac{18.97}{150} =0.126}[/tex]

[tex]Box 2 = \frac{11.97}{100} =0.1197}[/tex]

[tex]Box 3 = \frac{8.97}{56} =0.160[/tex]

By comparison, 0.1197 is the least

Hence, box 2 has the least price per ounce

Read more about unit rates at:

https://brainly.com/question/19493296

2x² + 3 = 39 extracring square roots

Answers

Answer:

x=9

Step-by-step explanation:

first, subtract 3 from both sides so 2x^2=36, then, divide both sides by 2 so x^2=18 and divide 18 by 2 and 9^2=18

Answer:

x = ± 3[tex]\sqrt{2}[/tex]

Step-by-step explanation:

2x² + 3 = 39 ( subtract 3 from both sides )

2x² = 36 ( divide both sides by 2 )

x² = 18 ( take square root of both sides )

x = ± [tex]\sqrt{18}[/tex] = ± [tex]\sqrt{9(2)}[/tex] = ± ( [tex]\sqrt{9}[/tex] × [tex]\sqrt{2}[/tex] ) = ± 3[tex]\sqrt{2}[/tex]

Use the graph of speed versus time to answer the questions about acceleration.



Which of the cars is speeding up? ______



Which of the cars is slowing down? ______



Which of the cars is maintaining a constant speed? ______

Answers

The car that is speeding up is car A.

The car that is slowing down is car C.

The car that is maintaining a constant speed is car B.

What is speed?

Speed is the ratio of distance and time.

It shows how fast an object is moving at a given time.

We have,

From the graph, we see that,

Car A speed is increasing with time.

Car B is maintaining a constant speed with time.

Car C is decreasing its speed with time.

Thus,

Car A is speeding up.

Car C is slowing down

Car B is maintaining a constant speed.

Learn more about speed here:

https://brainly.com/question/7359669

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Answer:

Step-by-step explanation:

Diane flipped a coin 600 times and it landed heads up 240 times. What is the relative frequency of the coin landing heads up based on the results of this experiment?

4%
6%
40%
60%

Answers

Answer:

40%

Step-by-step explanation:

Flips 600 times, that's the total flips. ###/600

Heads flipped 240 times, and that's what you're looking for. 240/600

240/600 simplified is 2/5 (0.4)

You're looking for a frequency/percentage so you're looking at the decimal

Decimal number = Percentage

So it'll be 40%

Segment EF is tangent to Circle H at Point F and Segment EG is tangent to Circle H at Point G. Determine the value of the variable and the length of Segment EF.​

Answers

Bro they didn’t even teach me this in middle school I I can help you maybe try asking someone for help

A carpenter has wood that is 5x+2 feet long. How long is the wood after 2x-5 feet have been cut off. (type in your solution so i can learn from it thanks)

Answers

5x+2 - (2x - 5)

= 5x + 2 - 2x + 5

= 3x + 7

I am pretty sure that it is 3x+7

Select the equivalent expression.

Answers

Answer:

c

Step-by-step explanation:

the exponent 5 is multiplied by 4 then the other exponent 2 is also  multiplied by 4

Answer:

C

Step-by-step explanation:

using the rule of exponents

[tex](a^{m})^n[/tex] = [tex]a^{mn}[/tex]

[tex](\frac{2^{5} }{x^2})^4[/tex]

= [tex]\frac{2^{5(4)} }{x^{2(4)} }[/tex]

= [tex]\frac{2^{20} }{x^{8} }[/tex] → C

Which data set does the box-and-whisker plot represent?

Answers

Answer:

2nd choice

Step-by-step explanation:

Please help I will mark brainliest

Answers

Answer:

Hey dude! Im not sure how to figure out the angle on my own so try using math-way algebra it works most of the time!

sorry i cant help any more!

X= 106.6 degrees

Formula: a^2=b^2+c^2-2bcCosx
a=5.3
b=5.3
c=8.5


Please help me with the math

Answers

40, 12
20, 8
0.5, 4.1
hope this helps!!

I need this question answered

Answers

Answer:

-40

Step-by-step explanation:

HOPE THIS HELPS BRAINLIST

-40, because 5 can go into 200 40 different times. But since it’s negative you need to make 5 negative. Either way, -200/5=-40

)) A cylinder has a height of 9 meters and a diameter of 34 meters. What is its volume?
Use a = 3.14 and round your answer to the nearest hundredth.

Answers

Answer:

Volume of a sphere is (pi)*(r^2)*(h), where r is raduis, h is height, and pi is 3.14.

Diameter is 24/2 = 12

We just need to plug everything in.

(3.14)*(12^2)*(14) = 6330.24

I hope this helped. :)))

=^._.^=

find the radius of cylinder with a volume of 108pi ft3 and height of 12 ft​

Answers

The volume of a cylinder is the amount of space in it

The radius of the cylinder is 3 feet

How to calculate the radius

The volume of a cylinder is:

[tex]V = \pi r^2 h[/tex]

Where r represents the radius, and h represents the height

So, we have:

[tex]108\pi = \pi r^2 * 12[/tex]

Divide both sides by 12pi

[tex]9 = r^2[/tex]

Take the square roots of both sides

3 = r

Rewrite as:

r = 3

Hence, the radius of the cylinder is 3 feet

Read more about volume at:

https://brainly.com/question/10171109

Plz help! Due tonight!
Recycled​ CDs, Incorporated, offers a choice of 5 used CDs for ​$20​, with each additional CD costing ​$6. Write a cost function for purchasing 5 or more CDs. What will the cost of buying 9 CDs​ be? Let x represent the number of CDs over 5.

Answers

the answer will be

48$ dollars

Answer:

20 + 6x

$44

Step-by-step explanation:

So 5 CD's for 20 dollars is $4 ea. then each one added will be +6 with the variable (x).

so you can't have the first 5 becuase x is used for every one OVER 5.

So

$ or price = 20 + 6x

plug 4 in because 9-5 = 4

20 + 6(4)

20 + 24

$44

PLSSS ANSWER ITS FOR A TIMES TEST.......Lee's bank balances at the end of months 1, 2, and 3 are $1600, $1640, and $1681.
What will Lee's balance be at the end of month 5?

Answers

The answer would be $1766. From month 1-2 he gained 40 dollars. From month 2-3 he gained 41 dollars. So assuming his balance goes up another dollar each month you would add $42 and then ad $43. Which would add up to $1766.

Solve for y
2(y + 2) = 62(y+2)=6

Answers

Answer:

y=-8

Step-by-step explanation:

2y+4=62y+124=6

2y-62y=124-4=6

-60y=120=6

divide both side by -60

y=120/-60=6

y=-2=6

y=-2-6

y=-8

Help please!!! I really don’t know how to do this!

Answers

Answer:

I'm going to do 1 as an example and using what I've taught you, you have to do the rest. Hope my explanation helps.

Step-by-step explanation:

We are given the points (-2, -4) and (-1, -1)

We need to find the slope.

The equation to do so is y2 - y1 / x2 - x1

lest say:

-2 is x1

-4 is y1

-1 is x2

-1 is y2

-1 - (-4) / -1 - (-2)

3/1 = 3

slope (m) = 3

We already know the y-intercept is 2

The equation of a line is y = mx + b

For this problem we just have to substitute what we already know.

y = (slope)x + y-intercept

y = 3x + 2

*TIP*

If the y-intercept is negative, let's say: b = -5  (using slope 8)

the equation will be y = 8x - 5

Hope this helps. I wish you all the best. :)

6x - ? = x
whats the answer

Answers

Answer:

5x

Step-by-step explanation:

6x - ? = x

? = 6x - x

? = 5x

Hope it helps ⚜

[tex]6x - ? = x\\-?=x - 6x\\-?=-5x\\\Longrightarrow \: \: ?=5x[/tex]

[tex]\heartsuit \: \sf\: Jenkai \: \bigstar[/tex]

solve this on a piece of paper so it can be great to understand thankyou.

8x+4y=8 and 2x+y=4


Answers

Answer:

1. x = -1/2y + 1

y = 2x + 2

2. x = -1/2y + 2

y = 2x + 4

The area of this polygon is 228 square meters
What is the length of the side labeled with a question mark
Enter your answer in the box

Answers

Answer: 7

Step-by-step explanation:

Let the unknown length be x

Cut the polygon into 2 pieces

6 * 24 + x * (18 - 6) = 228

144 + 12x = 228

12x = 84

x = 7

The length of the side labeled with a question mark in the given polygon is 7 meters.

What is area?

Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.

Given that, the area of this polygon is 228 square meters.

We know that, the area of a rectangle is Length×Breadth

Area of a large rectangle = 24×6

= 144 square meters

Let the length of unknown side be x.

Area of a small rectangle = 12×x

Total area = Area of a large rectangle+Area of a small rectangle

228=144+12x

12x=228-144

12x=84

x=84/12

x=7 meters

Therefore, the length of the side labeled with a question mark is 7 meters.

Learn more about the area here:

https://brainly.com/question/27683633.

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Please I need help with this problem

Answers

Step-by-step explanation:

First problem looks right. Although he started with 145, not 25. Savings and checking combined is the total amount of cash he had before he started working, which is why it's added to the total amount of money he has.

He saves 55 every week. because the multiplier on w, which is weeks is 55. So for every week 55 is added to the multiplication. Ex 2 weeks is 110, 3 is 165, 4 is 220 etc..


He wanted a total of 650 usd. Doesn't matter where it is the total is what matters. Doesn't matetr if hes spending,  storing or even burning the money..
So first make 55w+145=650 then solve

Minus 145 from both sides

55w = 505

About 9 weeks one day and 6 hours. This is a rough estimate since the answer is 9.18181818 weeks.

Please need the answer

Answers

Answer:

A. True

B. True

C. False

Step-by-step explanation:

Hope that helps!

.
What is the name of the perimeter of a circle?
Length
Circumference
Perimeter
Width

Answers

Answer: circumference

Step-by-step explanation: you’re welcome

Answer:

circumference because it

Finding angles , please help

Answers

Answer:

m∠C = 43.6°, m∠B = 107.4°, b = 51.2

Step-by-step explanation:

Use the law of sines:

a / sin ∠A = c / sin ∠C26 / sin 29° = 37 / sin ∠Csin ∠C = 37 sin 29° / 26sin ∠C = 0.6899m∠C = arcsin 0.6899m∠C = 43.6°

Find the missing angle:

m∠B = 180° - 29° - 43.6° = 107.4° (rounded)

Use the law of sines to find the length of b:

a / sin ∠A = b / sin ∠B26 / sin 29° = b / sin 107.4°b = 26 sin 107.4° / sin 29°b = 51.2 units (rounded)

pleas help it is in the screenshot

Answers

Answer:

10) 8.4

11) 25.6

Step-by-step explanation:

10)

[tex]\cfrac{7}{10}=\cfrac{x}{12}[/tex]

[tex]x=12\times \cfrac{7}{10}[/tex]

[tex]=8.4[/tex]

11)[tex]\cfrac{8}{5} =\cfrac{x}{16}[/tex]

[tex]5\times x=8\times 16[/tex]

[tex]\cfrac{5x}{5} =\cfrac{128}{5}[/tex]

[tex]x=25.6[/tex]

Hope it helps! :)

Enter answer as a decimal ex: 42.53

Answers

21 rounded to the nearest hundredth is 21.00!

Answer:

The probability of pulling a green marble is 0.58 (58%).

Step-by-step explanation:

Total marbles: 36

Purple marbles: 15Green marbles: 21

[tex]\frac{21}{36} = 0.58[/tex]

Line m passes through points (10, 4) and (1, 6). Line n passes through points (1, 11) and (10, 9). Are line m and line n parallel or perpendicular

Answers

Answer:

Parallel

Step-by-step explanation:

Answer:

parallel

Step-by-step explanation:

Beth has 380 pages left to read in her literature book. She has decided to read 40 pages every three days. What is the slope of the
line that represents this function?

Answers

Answer:

slope = 1/-13

Step-by-step explanation:

I need help with this

Answers

Answer: B

Step-by-step explanation:

We can see that the graph is being compressed, so f(x) is being transformed into f(ax), where 0<a<1.

The only option that satisfies this is y=f(x/2).

3rd time posting this question first time was 2 hours ago, someone please help

Answers

Answer:

What math level is this?

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