There were 640 gallons of water in a 1,600-gallon pool. Water is being pumped into the pool at a rate of 320 gallons per hour.

If t stands for hours and the pool is being filled using the equation: 1600=320t+640, how many hours will it take to fill the pool?

Answers

Answer 1

Answer:

4

Step-by-step explanation:

do 320 +320 untill you get to 1,600  


Related Questions

The compound interest on Rs. 50000 at 4% per annum for 2 years compound annually is

Answers

Answer:

$54080

Step-by-step explanation:

Step one:

given

principal= Rs. 50000

rate= 4%= 0.04

time= 2 years

Required

The final Amount A

Step two

Applying

A= P(1+r)^t

substitute

A= 50000(1+0.04)^t

A= 50000(1.04)^2

A= 50000*1.0816

A= 54080

$54080

which of the following equations fits the data shown in the table?​

Answers

Answer:

C.

Step-by-step explanation:

When you fix in the values of x from the table, you'll get y

Please gimme brainliest

Answer:

C

Step-by-step explanation:

Substitute the values of x and y in the this equation , the equation will be satisfied

Y=2x+3 (x=0,y=3)

3= 2(0)+3

3=3

Please help me! First correct answer gets brainliest. Thanks!

Answers

Answer: it’s not b it’s d..

Helpppppppppppppppppppppppp

Answers

Answer:

t0qjg9gkrgrgfr

Step-by-step explanation:

rgrgrgrgrgrgrgrgrg

Answer:

I believe the answer is a 25

Step-by-step explanation:

i learned this last year on I ready and I believe you divide each side in a half and thats the answer so it should be a

PLZ HELP QUICKLY THANK YOU
The interval for this number line is_____.
A.3
B.5
C.4
D.6

Answers

Answer:

A: 3

FLVS... its right trust

3 skskndxjjdkdndnsnskd

please help it is due today

Answers

Answer:

so it  equation a= 0.2

Step-by-step explanation:

Answer:

The first one (a = 0.2 x 150). And a = 30

Step-by-step explanation:

To find a percentage of a number, you multiply it by 0.10 for 10%, 0.20 for 20%, and so on. Since a is the unknown number, that makes the first option correct. Now, we multiply .2 and 150 to get 30. That is the answer to the second part.

You prepare 10 scoops of dog food for 5 dogs, and prepare 16 scoops of dog food for 8 dogs. What
is the constant of proportionality for the amount of dog food to the number of dogs? How many
scoops of dog food should you prepare for 6 dogs?

Answers

Answer:

12 scoops of dog food are needed for 6 dogs,

Step-by-step explanation:

Proportions

The number of scoops of dog foods and the number of dogs are proportional variables.

We are given that 10 scoops of dog foods are used for 5 dogs. This gives a proportion of 10/5=2 scoops per dog.

We also know that 16 scoops are used for 8 dogs. The proportion is also 16/8=2 scoops per dog.

Thus, the constant of proportionality is 2.

For 6 dogs, you need to prepare 2*6 = 12 scoops of dog food.

12 scoops of dog food are needed for 6 dogs,

PLS HELP DUE AT 5:00 pm

Answers

I’m pretty sure it’s either C or A

what's the slope between (5,-2) and (-7,22)

Answers

Answer: The answer is: -2

Step-by-step explanation:

Here, suppose

(5,-2)=(x1, y1)

(-7,22)=(x2, y2)

Now, use the slope equation to find slope(m).

     y2-y1=m(x2-x1)

or,m=y2-y1/x2-x1

After this, just substitute the values from above.

What is the place value of the 7 in 4.704

Answers

Answer:

it is in the tenths place :)

Step-by-step explanation:

hope this helps you <3

Answer:

tenth place

Step-by-step explanation:

The middle school population is made up of 55% girls and 45% boys. Of the boys 40% have siblings what percent of the middle school population has siblings

Answers

Answer:2.5%

Step-by-step explanation:

2.5% of the school has sibloings

55+45=100

100÷40=2.5

At a store, a hat has a regular price of x dollars. During a sale, the price of the hat is discounted by 20%. The expression 0.8x describes the discounted price, in dollars, of the hat. Which expression also describes the discounted price, in dollars, of the hat?

Answers

Answer: D) x - 0.2x

Step-by-step explanation:

The hat has a regular price of x dollars.

This price is reduced by 20% so the relevant expression for the discount is; 20% * x or; 0.2x

The discounted price will be the price of the hat less the discount which means the formula will be;

= Price - discount

= x - 0.2x

What is the slope of the line defined by the equation y = 3x + 5?​

Answers

Answer:

Step-by-step explanation:

slope(m)= -Coefficient of x / Coefficient of y

                 = -3/-1

                  = 3

Hence the slope of line in 3.  

which expression is equivalent to 15 - 5x? select all that apply

A -5(x - 3)
B 3(5-x)
C -5(3- x)
D -(-5+2x) + x​

Answers

Choices A and B are correct. To find the equivalent expressions, you would do the distributive property for the choices to
get rid of the parentheses. You would then see which choices match up with 15 - 5x. Hope this helps!
A.) -5x + 15 (yes)
B.) 15 - 5x (yes)
C.) -15 + 5x (no)
D.) 5 - x (no)

2. Trey decides to raise
the price of his
tomatoes from $5 a
basket to $6 a basket.
What is the percent of
increase?

Answers

Answer:

1

Step-by-step explanation:

Answer:

the answer to the question listed above would be 1

Step-by-step explanation:

Vladas believes that an equation with a squared term is never a function of x. Which equation can be used to show Vladas that his hypothesis is incorrect?
x + y2 = 25
x2 – y = 25
x2 + y2 = 25
x2 – y2 = 25

Answers

Hence , the Vladas hypothesis which is incorrect is x² + y² = 25 which is option (c) .

Pythagoras theorem states that “In a trigon, the square of the flank facet is adequate to the total of squares of the opposite 2 sides“.

The equation with a square term is rarely a perform of x declared by Vladas.

This is the statement relating to philosopher theorem that states that square of 2 range|number} is third number , these numbers once assigned to a triangle forms a right angulate triangle , the angle between 2 smaller sides is of 90°.

Among the four hypothesis given:

Option (C) : x²+ y²= 25  which is true.

Learn more about Pythagoras theorem here:

https://brainly.com/question/343682

#SPJ1

please help!! ill mark brainliest if correct as a christmas present but please help! :))

Answers

Answer:

(0.5 -2.5)

Step-by-step explanation:

B is at (1, -5). A dilation by 0.5 means that these coordinates are multiplied by 0.5 each.

So 0.5(1) then 0.5(-5) = (0.5, -2.5)

Order 67% , 3/4 , 0.7, and 3/5 in order from least to greatest

Answers

Answer:

3/5, 67%, 0.7, 3/4  

Step-by-step explanation:

3/4= 75%

3/5= 60%

67%

0.7=  is equivelent to 70%  

please HELPPPPPPPPPPPPP

Answers

25.13274122.

....................

HELP PLEASE ITS Which point would not be a solution to the system of linear inequalities shown below? y -3x+7!
(5,−5)(10,−8)(5,−6)(−10,−7)

Answers

Answer:

(-10,-7)

Step-by-step explanation:

Lets start with the equation y>-3x+7

Which of these are solutions?

(5,-5) - yes

(10,-8) - yes

(5,-6) - yes

(-10,-7) - no

Now lets do the equation y<4/5x-2

Which of these are solutions?

(5,-5) - yes

(10,-8) - yes

(5,-6) - yes

(-10,-7) - no

So, the point (-10,-7) is not a solution to the system of equations.

Please help! I'll give brainliest! I'm gonna be grounded for the 3rd time this week if my stuff isn't done :/

How do geologists believe that the Devils Tower was formed?
A. All the land except the rocks around the Devils Tower were
eroded during the Ice Age.
B. The Devils Tower was an ancient hotspot that plate movements
isolated after the volcano became inactive.
C. Magma pushed up from the mantle to sedimentary rocks which
then eroded leaving the column.
D. It's the stem of a volcano that erupted millions of years ago
and surrounding rock eroded away.

Answers

Answer:

C. Magma pushed up from the mantle to sedimentary rocks which

then eroded leaving the column.

Step-by-step explanation:

Geologists Carpenter and Russell studied Devils Tower in the late 1800s and concluded that the Tower was formed by an igneous intrusion (the forcible entry of magma through other rock layers).

Ann drove 638 miles in 11 hours.
At the same rate, how many miles would she drive in 9 hours?

Answers

Answer:

638 miles / 11 hours = 58mph

So if he is traveling at 58 miles per hour for 7 hours, multiply the two numbers. 7(58) = 406

At the same rate of speed, Eric would travel 406 miles in 7 hours.

Step-by-step explanation:

I hope you undertand it

Answer:

522

Step-by-step explanation:

638 miles.......11hours

x miles ............ 9 hours

x = 638 * 9 / 11 = 522 miles

A map has the scale 0.75 of an inch equals 220 miles. The distance from Springfield to Glenview is 6 inches. How many actual miles separate Springfield from Glenview?

Answers

Answer:

1,760 actual miles separate Springfield from Glenview.

Step-by-step explanation:

Scaling

Objects can be represented in a reduced or augmented size by using scaling which is basically multiplying or dividing real dimensions by a constant factor. We use scaling when representing geographic locations on a map.

The map has the scale:

0.75 inch => 220 miles

This gives us the scaling factor as 220/0.75. There is no need to divide.

We are given the distance from Springfield to Glenview is 6 inches on the map. The actual distance is

6*220/0.75 = 1,760

1,760 actual miles separate Springfield from Glenview.

A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/sec while it's height is increasing at the rate of 5 inches/sec. When the radius is 4 inches and the height is 6 inches, how fast is the volume changing? Round your answer to three decimal places

Answers

The volume of the right circular cylinder is changing at a rate of approximately 50.265 cubic inches per second.

Given that a right circular cylinder is changing shape.

The radius is decreasing at the rate of 2 inches/sec

dr/dt = -2 inches

The radius is increasing at the rate of 2 inches/sec

dh/dt=5 inches

We have to find dv/dt when r is 4 inches and h is 6 inches.

Volume=πr²h

Differentiate with respect to 't' to find the change of volume:

[tex]\frac{dV}{dt}=\pi(2rh\frac{dr}{dt}+r^2\frac{dh}{dt})[/tex]

Plug in the values:

[tex]\frac{dV}{dt}=3.14(2(4)(-2)(6) + 16(5))[/tex]

[tex]=3.14(-96+80)[/tex]

[tex]=3.14(-16)[/tex]

[tex]=-50.265[/tex] inch³/sec.

Hence, the volume change is -50.265 inch³/sec.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ12

Out of 30 students in Mohammed's class, 40% are girls. How many are boys?

Answers

Answer:

18 boys

Step-by-step explanation:

30*0.4= 12

30-12=18

11. A survey of students showed that of them will try the new cafeteria foods. If 180 students are given a new cafeteria food, how many of them will try it? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Answers

Answer:

Im kinda confused on this too

Step-by-step explanation:

HELPPP!!!???PLEASE HELPPP!!

Answers

Answer:

[tex]\frac{5}{14}[/tex] [tex]or[/tex] [tex]0.357142857143[/tex]

Step-by-step explanation:

__________________________________________________________

[tex]\frac{2}{7}\div\frac{4}{5}[/tex] = [tex]\frac{5}{14}[/tex] [tex]because[/tex],

[tex]\frac{2}{7}[/tex] = [tex]0.285714285714[/tex]

[tex]\frac{4}{5}[/tex] = [tex]0.8[/tex]

[tex]0.285714285714[/tex] [tex]\div[/tex] [tex]0.8[/tex] = [tex]0.357142857143[/tex]

[tex]\frac{5}{14}[/tex] = [tex]0.357142857143[/tex]

__________________________________________________________

Hope this helps! <3

__________________________________________________________

Answer:

it is A

Step-by-step explanation:

Multiply them then divide them by 2

What is the prime factorization of 73

Answers

Answer:

73 has exactly 2 factors

Step-by-step explanation:

hope this helps, pls mark brainliest :D

what is the greatest common factor of 7 and 21

Answers

Answer:

7

Step-by-step explanation: calculate the prime factors of 7 and 21, than find the greatest common factor

The greatest common factor of 7 and 21 is 7.

What is Number system?

A number system is defined as a system of writing to express numbers.

To find the greatest common factor (GCF) of 7 and 21, we can list the factors of each number and identify the largest factor they have in common.

The factors of 7 are 1 and 7

The factors of 21 are 1, 3, 7, and 21.

The largest factor that they have in common is 7.

Therefore, the greatest common factor of 7 and 21 is 7.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ5

List the integers from least to greatest: -22 , 0, 7 , -5, 3, -6, 10
A - 10, 7, 3, 0 , -5, -6, -22
B - -22, -6, -5, 0, 3, 7, 10
C - 0, 3, -5, -6, 7, 10, -22
D - 3, -5, -6, 7, 10, -22, 0

Answers

Answer:

-22,-6,-5,0,3,7,10

Step-by-step explanation:

It would be the highest negative integers in front, so going down, you'd reach 0. Then go up positive number 3,7,10.

Other Questions
Which point represents 4StartRoot 2 EndRoot (cosine (StartFraction 5 pi Over 4 EndFraction) + I sine (StartFraction 5 pi over 4 Endfraction) ) ?It's Point B In an experiment, equal amounts of heated water and soil were left to cool down. The initial and final temperatures of each were recorded. A partial record of the temperature is shown.Experimental RecordSubstance Initial Temperature Final TemperatureWater 27 C 24 CSoil 27 C ?Which statement about the final temperature of soil is correct? It will be less than 24 C as soil loses heat relatively faster than water. It will be less than 24 C as water loses heat relatively faster than soil. It will be more than 24 C as it takes relatively longer to change soil temperature than water temperature. It will be more than 24 C as it takes relatively longer to change water temperature than soil temperature. Three pens and three notebooks cost $6.90. Two notebooks and one pen cost $4.10 1 pointWhich of the following is not 100% individualistic?a.) Fingerprintsb.) DNAc.) Patterns on your retinad.) Ear patternsO e.) Lip patterns Someone help me pleaseeee A line is shown in the graph. What is the equation of the line? What is the midpoint, M, of line segment HG withendpoints H(-10,2) and G(4,-4). Help me with this question, please A small business has a credit line of $50,000. Which statements are true of this line? (Select all that apply.)It is a short-term capital asset.It will be listed on the equity statement as a capital asset.It is listed on the equity statement as a capital liability.It is a long-term capital investment. Which function has a domain of all real numbers ASAP please help me I need this quick The question and answers are in the picture gabriel has 6 2/3 of almond flour to make macaroons. he plans to make a recipe that uses 3/4 of a cup of almond flour. what is the greatest number recipes he can make? What was the main idea of jacksonian democracy A to allow common Americans to have more influence in the political processes B to support the industrial growth of the northern region of the United states C to improve the relationship of the United states with foreign countries D to help the American Indians gain rights as citizens E to destroy the second bank of the United states??? A gyroscope of radius 18 centimeters rotates 35 times per minute. Find the linear velocity of a point on the edge of the gyroscope. CAN I GET SOME HELP PLEASE??? why is the symbol [Ar] used in the electron configuration of potassium, and what does it represent? Steve has 3 cups of water. If his brother has one fluid ounce more than Steve, how many fluid ounces of water does Steve's brother have? One of the main reasons Islam became a major religion in Africa was that:O A. it offered an alternative to unpopular Christian beliefs.O B. it promised to get rid of all taxes on salt and gold.O C. it received support from western African empires.O D. it started in Africa instead of on a foreign continent.SUBMIT What is the equation of the line through (4, -3) and (0, -2)? A. y = 4x + 2 B. y=-4x - 2 C. y = -12- 2 D .y= 4x + 2 ________ is a collection of all the organisms that live in a particular place, together with their nonliving, or physical, environment. They vary in size from all the organisms living on a decaying rock to the whole wetland.A BiomeB BiosphereC None of the aboveD CommunityE Ecosystem