Heather's fish tank has 18 liters of water in it. she plans to add 4 liters per minute until the tank has more than 58 liters. what are the possible numbers of minutes heather could add water?

Answers

Answer 1
It tank will be filled up in 40 mins cause every min you fill in 4 liters. Don’t take my word for this make sure you check my work.

Related Questions

I need help with this math question!!
Simplify 0.4i−i.

Answers

oh..! it is
= i(0.4-1)
= 0.6i

The simplification of the given expression is 0.6i.

What are complex numbers?

Complex numbers are those numbers that contain the imaginary and the real part.

A Complex value z is written in a rectangular form as z = x+iy where (x, y) is the rectangular coordinates.

where r is the modulus of the complex number and θ is the argument

r =√x²+y² and θ = tan⁻¹y/x

Usually the simplification involves proceeding with the pending operations in the expression.

We need to simpify the 0.4i - i

= i(0.4-1)

= 0.6i

Therefore, the simplification of the given expression is 0.6i.

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How many students had a shoe size greater than the mean shoe size?

Answers

10 everything greater than 8.5

Which equation could generate the curve in the graph below?y=3x^2-2x+1

Answers

If you are asking what is the graph of y = 3x^2 -2x+1.

Then, the attached file would be the answer.

To check, b^2 - 4(a)(c), for each equation and use these facts:

If b^2 - 4(a)(c) = 0, there is only one real root meaning, the graph touches the x-axis only in one point.

If b^2 - 4ac > 0, there are two real roots meaning, the graph touches the x-axis in two different points.

If b2 - 4ac < 0, there are no real roots then the graph does not touch the x-axis. This would be the case for y = 3x^2 - 2x + 1.
Solution:
(-2)^2 -4(3)(1) = 4 - 12 = -8 < 0 will result in not real roots. 

Does each function describe exponential growth or decay?

Drag and drop the equations into the boxes to correctly complete the table.


Growth Decay
y=100(1−12)^t


y=0.1(1.25)^t

y=((1−0.03)12)^2t

y=426(0.98)^t

y=2050(12)^t






Answers

A function [tex]f[/tex] from a set [tex]A[/tex] to a set [tex]B[/tex] is a relation that assigns to each element [tex]x[/tex] in the set [tex]A[/tex] exactly one element [tex]y[/tex] in the set [tex]B[/tex]. The set [tex]A[/tex] is the domain (also called the set of inputs) of the function and the set [tex]B[/tex] contains the range (also called the set of outputs).


[tex]We \ denote \ the \ \mathbf{exponential \ function} \ f \ with \ base \ a \ as: \\ \\ f(x)=a^x \\ \\ where \ a>0, \ a\neq 1, \ and \ x \ is \ any \ real \ number[/tex].


1. It isn't an exponential function.

We have the following equation:

[tex]y=100(1-12)^t[/tex]


That can be written as:

[tex]y=100(-11)^t[/tex]


Recall that the definition of exponential functions establishes that:

[tex]We \ denote \ the \ \mathbf{exponential \ function} \ f \ with \ base \ a \ as: \\ \\ f(x)=a^x \\ \\ where \ a>0, \ a\neq 1, \ and \ x \ is \ any \ real \ number[/tex].


That is:


[tex]a \ \mathbf{must} \ be \ greater \ than \ 1[/tex]


In this problem, [tex]a=-11[/tex], therefore this is not an exponential function.


2. Growth.

The function:

[tex]y=0.1(1.25)^t[/tex]


is an exponential function because is a function of the form [tex]f(t)=ka^t \\ \\ where \ a>0 \ and \ k \ constant[/tex]


So [tex]k=0.1 \ and \ a=1.25[/tex]. Since [tex]a \ is \ greater \ than \ 1[/tex] and being raised to the power of [tex]t[/tex], the function increases. This means that [tex]y[/tex] increases as [tex]t[/tex] increases as illustrated in Figure 1. This represents a growth.


3. Growth.

The function:

[tex]y=((1-0.03)12)^{2t}[/tex] can be written as:


[tex]y=11.64^{2t}[/tex]


and is an exponential function because is a function of the form [tex]f(t)=a^{bt} \\ \\ where \ a>0 \ and \ b \ constant[/tex]


So [tex]a=11.64 \ and \ b=2[/tex]. Since [tex]a \ is \ greater \ than \ 1[/tex] and being raised to the power of [tex]2t[/tex], the function increases. As in the previous exercise, this means that [tex]y[/tex] increases as [tex]t[/tex] increases as illustrated in Figure 2. This represents a growth.


4. Decay.

The function:

[tex]y=426(0.98)^t[/tex]


is an exponential function because is a function of the form [tex]f(t)=ka^t \\ \\ where \ a>0 \ and \ k \ constant[/tex]


So [tex]k=426 \ and \ a=0.98[/tex]. Since [tex]a \ is \ less \ than \ 1[/tex] and being raised to the power of [tex]t[/tex], the function decreases. Here this means that [tex]y[/tex] decreases as [tex]t[/tex] increases as illustrated in Figure 3. This represents a decay.


5. Growth.

The function:

[tex]y=2050(12)^t[/tex]


is an exponential function because is a function of the form [tex]f(t)=ka^t \\ \\ where \ a>0 \ and \ k \ constant[/tex]


So [tex]k=2050 \ and \ a=12[/tex]. Since [tex]a \ is \ greater \ than \ 1[/tex] and being raised to the power of [tex]t[/tex], the function increases. So in this function [tex]y[/tex] also increases as [tex]t[/tex] increases as illustrated in Figure 4. This represents a growth.

Answer:

1. isn't an exponential function

2. growths

3. growths

4. decay

5. growths

Step-by-step explanation:

The exponential functions has the form: y = k1*k2^(k3*t), where k1, k2 and k3 are a constants, and k2>0. Graph of exponential functions always decrease or always increase. To know if a function growths or decay just evaluate the function in 2 points, for example t = 0 and t = 1, and compare their results.

1.

y = 100*(1−12)^x = 100*(−11)^x

Since (-11) is negative, then y is not an exponential function

2.

y(0) = 0.1*(1.25)^(0) = 0.1

y(1) = 0.1*(1.25)^(1) = 0.125

y(1) > y(0) -> growths

3.

y(0) =((1−0.03)12)^2(0) = 1

y(0) =((1−0.03)12)^2(1) = 135.4896

y(1) > y(0) -> growths

4.

y(0) = 426(0.98)^(0) = 426

y(1) = 426(0.98)^(1) = 417.48

y(1) < y(0) -> decay

5.

y(0) = 2050(12)^(0) = 2050

y(1) = 2050(12)^(1) = 24600

y(1) > y(0) -> growths

If you have $45 and they take 2.1% of it how much do you have left ?

If you have $765 and they take 2.1% of it how much do you have left ?

If you have $1300 and they take 2.1% of it how much do you have left ?

Answers

First you need to make a multiplier for 100-2.1%, to do this you minus the values and divide it by 100:
100-2.1 = 97.9
97.9/100 = 0.979

Then you multiply all the questions by it:
$45 * 0.979 = $44.055
$765 * 0.979 = $748.935
$1300 * 0.979 = $1272.7

Hope this helps! :)

A Springer Spaniel weighs 20 kilograms 490grams. A Cocker Spaniel weighs 7,590 grams less than a Springer Spaniel. A Newfoundland weighs 52 kilograms 656 grams more than a Cocker Spaniel. What is the difference, in grams, between the weights of the Newfoundland and the Springer Spaniel?

Answers

Final answer:

To find the difference in weight between the Newfoundland and the Springer Spaniel, subtract the weight of the Springer Spaniel from the weight of the Newfoundland.

Explanation:

To find the difference in weight between the Newfoundland and the Springer Spaniel, we need to subtract the weight of the Springer Spaniel from the weight of the Newfoundland. The Newfoundland weighs 52 kilograms 656 grams more than a Cocker Spaniel. So, we first need to find the weight of a Cocker Spaniel by subtracting 7,590 grams from the weight of the Springer Spaniel. We then add this weight to the weight of the Newfoundland to get the final answer. Let's calculate:

The weight of the Cocker Spaniel = Weight of Springer Spaniel - 7,590gThe weight of the Newfoundland = Weight of Cocker Spaniel + 52kg 656gFinally, the difference in weight between the Newfoundland and the Springer Spaniel is the weight of the Newfoundland - weight of the Springer Spaniel

We can now substitute the given values into these equations and solve.

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2. For the circle with equation , answer each question.
(a) What are the coordinates of the center?
(b) What are the radius and diameter of the circle?
(c) Graph the circle.

Answers

Has anyone gotten this yet??
(a) For the circle with equation (x – 2)^2 + (y + 3)^2 = 9, answer each question:
You have to recognize this circular equation form.
(x-h)^2 + (y-k)^2 = r^2 
where (h,k) is the center and r is the radius
------------------------------------------------ 
What are the coordinates of the center?
Ans: (2,-3)

(B) The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

(C) Realize that the circle is centered at the origin (no h and v) and place this point there.Calculate the radius by solving for r. Set r-squared = 16. ...Plot the radius points on the coordinate plane. ...Connect the dots to graph the circle using a smooth, round curve.

Mr. Chen goes to the post office to buy small and large boxes. He needs at least 4 small boxes. Altogether, he will buy no more than 15 boxes. The post office has 10 small boxes and 9 large boxes in stock. The graph shows the feasible region, where x represents the number of small boxes and y represents the number of large boxes. Which ordered pairs meet all the constraints and make sense in context of the situation? Select each correct answer. (6, 9) (7,10) (8,6) (9,8) Graph of lines and a shaded region on a coordinate plane whose axes are labeled x and y. A solid vertical line passes through 4 comma 0. Another solid vertical line passes through 10 comma 0. A solid horizontal line passes through 9 comma 0. A solid diagonal line passes through 0 comma 15, 4 comma 11, 6 comma 9, and 10 comma 5. The polygon whose vertices are at 4 comma 9, 6 comma 9, 10 comma 5, 10 comma 0, and 4 comma 0 is shaded.

Answers

The answer is probably (6,9)

Tristan jogs a route that is 7/10 mile. If he wants to jog between 2 and 3 miles, how many times should he plan to run the route? Circle the letter for all that apply.
A. 2 times
B 3 times
C. 4 times
D. 5 times

Answers

B. 3 and C. 4 times

Answer:

B 3 times

C. 4 times

Step-by-step explanation:

For Tristan to  jog between 2 and 3 miles, the number of times he would have to jog the route that is 7/10 mile must be such that the product of the number of times and 7/10 miles gives a number between 2 and 3.

Considering the options given

A. 2 * 7/10 = 1.4 miles (this is not within the range)

B. 3 * 7/10 = 2.1 miles (this is within the range)

C. 4 * 7/10 = 2.8 miles (this is within the range)

D. 5 * 7/10 = 3.5 miles (this is not within the range)

If sinθ = -1/2 and θ is in Quadrant III, then tanθ = _____.

Answers

tan tetha at quadrant III would be [tex] \frac{ \sqrt{3} }{3} [/tex]

Answer:  [tex]\tan \theta=\dfrac{1}{\sqrt3}.[/tex]

Step-by-step explanation:  Given that

[tex]\sin\theta=-\dfrac{1}{2}[/tex] and [tex]\theta[/tex] lies in Quadrant III.

We are to find the value of [tex]\tan \theta.[/tex]

We will be using the following trigonometric identities:

[tex](i)~sin^2\theta+\cos^2\theta=1,\\\\(ii)~\dfrac{\sin\theta}{\cos{\theta}}=\tan \theta.[/tex]

We have

[tex]\tan\theta\\\\\\=\dfrac{\sin\theta}{\cos\theta}\\\\\\=\dfrac{\sin\theta}{\pm\sqrt{1-\sin^2\theta}}\\\\\\=\pm\dfrac{-\frac{1}{2}}{\sqrt{1-\left(\frac{1}{2}\right)^2}}\\\\\\=\pm\dfrac{\frac{1}{2}}{\sqrt{1-\frac{1}{4}}}\\\\\\=\pm\dfrac{\frac{1}{2}}{\frac{\sqrt3}{2}}\\\\\\=\pm\dfrac{1}{\sqrt3}.[/tex]

Since [tex]\theta[/tex] lies in Quadrant III, so tangent will be positive.

Thus,

[tex]\tan \theta=\dfrac{1}{\sqrt3}.[/tex]

Twice the smallest of three consecutive odd integers is nine more than the largest. find the integers.

Answers

 let   x        x +2       x+4     three consecutive odd integers


2x =9+ x+4   Twice the smallest is nine more than the largest 
 2x - x= 13

x= 13  the first 
the second integer 15   the third  17 

The required Integers  are 13, 15, 17

What are the Integers?

Integers are the collection of whole numbers and negative numbers.

Given that twice the three consecutive odd Integers is nine more than the largest.

Let the numbers be x , x+2 , x+4

According to question

2x = 9+x+4

x = 13

Hence the Integers are 13, 15, 17

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What is the slope of the line perpendicular to the line represented by the equation 2x+4y=12?

Answers

The slope would be 2

in triangle RST, m∠R=(2x+10), m∠S=(2x+25), m∠T=(x-5)

what is the value of x

A. 30
B. 28
C. 26
D. 32

Answers

Every triangle has a total of 180 degrees so when you plug in the answer for x all angles should add up to 180 
70+85+25=180 which means A.30 is the correct answer 
(2(30)+10)+(2(30)+25)+(30-5)= 180

Which property justifies this statement? If 4x=20, then x=5. Division Property of Equality Reflexive Property of Equality Substitution Property of Equality Subtraction Property of Equality

Answers

Division Property of Equality

Answer:

Option 1 - Division Property of Equality

Step-by-step explanation:

Given : If  [tex]4x=20[/tex], then x=5.

To find : Which property justifies this statement?

Solution :

The equation is  [tex]4x=20[/tex]

To make variable separate we have to remove 4 which is in multiple of variable x.

So, We divide both side by 4,

Applying division property of equality,

We can divide both sides of an equation by the same number and preserve equality.

[tex]\frac{4x}{4}=\frac{20}{4}[/tex]

[tex]x=5[/tex]

Therefore, The property justifies the statement is 'Division Property of Equality'.

So, Option 1 is correct.

Witch of the following is closest to 27.8 X 9.6 is it 280, 2800, 300, or 3000

Answers

The Answer Is 280.. Hope This Helps
I agree with the above answer, A. 280.

Hope this helps and thank you for using Brainly!

Change each fraction to a decimal. If the division doesn’t end, round your answer to the nearest hundredth. a. 3⁄4 b. 7⁄16 d. 3⁄5 e. 7⁄40 f. 51⁄20

Answers

Answer:

a = 0.75

b= 0.4375

d= 0.6

e=0.175

f= 2.55

Step-by-step explanation:

By simple division method, the following answers can be calculated:

a.

=[tex]\frac{3}{4}[/tex]

=0.75

b.

= [tex]\frac{7}{16}[/tex]

=0.4375

d.

= [tex]\frac{3}{5}[/tex]

=0.6

e.

= [tex]\frac{7}{40}[/tex]

=0.175

f.

=[tex]\frac{51}{20}[/tex]

=2.55

Thus, the answer are :

a = 0.75

b= 0.4375

d= 0.6

e=0.175

f= 2.55

Answer:

A.0.75 B.0.4375 C. 14.4 D. 0.6 E. 0.175 F. 2.55

Step-by-step explanation:

How many degrees are in each interior angle of a regular pentagon? 50 72 108 120

Answers

The answer 108 degrees.

Answer: [tex]108^{\circ}[/tex]

Step-by-step explanation:

The sum of all the angles in a regular polygon with sides n , is given by :-

[tex]S_n=180^{\circ}(n-2)[/tex]

Now, the sum of all the angles in a regular pentagon with 5 sides will be :-

[tex]S_5=180^{\circ}(5-2)=180^{\circ}(3)=540^{\circ}[/tex]

We know that all the interior angles of a regular polygon are equal .

Therefore, the measure of each interior angle in a pentagon is given by :-

[tex]x=\dfrac{540^{\circ}}{5}=108^{\circ}[/tex]

Hence, the measure of each interior angle in a pentagon=[tex]108^{\circ}[/tex]

Find the value of the variable.

Answers

set the 2 problems equal to each other and then slice for x.
And x is 58

A variable is: an instruction for the compiler a location in memory where a value can be stored a description of a value (such as a number or character) none of the above.

Answers

In computer science, a variable is a location in memory where a value can be stored

Final answer:

A variable is a name assigned to a quantity that can take on various values, and is used by mathematicians, economists, and statisticians in different contexts to represent data or elements of an equation.

Explanation:

A variable is the name given to a quantity that may assume a range of values. Mathematicians and economists often use variables in equations to represent different aspects of a problem or scenario. For example, in the equation of a line, commonly expressed as y = mx + b, the variables are 'x' and 'y'. Here, 'x' typically represents values on the horizontal axis, and 'y' represents values on the vertical axis, while 'b' is the y-intercept, and 'm' is the slope of the line. To understand how an equation with variables functions, we can look at a numerical example.

In statistics, variables can also refer to characteristics or measurements that can be determined for each member of a population. These variables can be numerical or categorical. A numerical variable, such as 'X' representing the number of points earned by a math student, allows for mathematical calculations like averaging. A categorical variable, like 'Y' indicating a person's political party affiliation, places individuals into categories and doesn't lend itself to mathematical operations like averaging.

Fresh side grocery sells 7 bagels for $4.41. value mart sells 5 bagels for $3.60. how do the unit rates compare?

Answers

Fresh Side : 4.41 / 7 = 0.63 per bagel
Value Mart : 3.60 / 5 = 0.72 per bagel

Fresh Side bagels are a better buy being that each bagel cost 0.63 compared to the bagels at Value Mart, which cost 0.72 per bagel.

The unit rate for a bagel at Fresh side is $0.09 cheaper than the unit rate at

Value mart for bagels.

What is a unitary method?

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, Fresh side grocery sells 7 bagels for $4.41.

∴ The cost of one bagel at Fresh side is $(4.41/7) = $0.63.

Value mart sells 5 bagels for $3.60.

∴ The cost of one bagel at Value mart is

= $(3.60/5).

= $0.72

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How many times will he get heads and tails when flipped 8 times?

Answers

8 times and about 4 times heads 4 times tails

An is planning a birthday party for her younger sister at a skating rink. the cost of admission is $3.50 per adult and $2.25 per child., and there is a limit of 20 people. jan has $50 to spend. how many adults and how many children can jan invite?

Answers

  let x be the number of adults 
let y be the number of child

3.5 x  + 2.25 y = 50  

x+ y =20     y = 20 - x 

3.5 (20-y ) + 2.25 y = 50 

70 - 3.5 y +2.25y =50

70 -1.25 y = 50 

y = 16 

and x = 4 
 


HELP!!! I GIVE LOTS OF POINTS!! THE ANSWER IS NOT 3!!!!!!!!

In ∆ABC, the median AM (M ∈ BC ) is perpendicular to the angle bisector BK (K ∈ AC ). Find AB, if BC = 12 in.

Answers

ik itś not 3 and i think that it might be 5... again not quit sure... sorry if i´m not correct

the answer would be 6 i did my calculations on paper then misplaced it but checked answer and it said 6

Adam earns a base pay plus a commission for each car he sells at Crazy Carl's Cool Cars. His monthly salary is modeled by the function f(c) = 250c + 500. If Adam doesn't sell a car, how much money does he earn for the month?

Answers

if assume c is commission,and monthly salary function is f(c)=250c+500, so if he doesn't sell anything in month he earn f(0)=250(0)+500=500

Answer: 500

Step-by-step explanation:

Since,  The monthly salary is modeled by the function,

f(c) = 250 c + 500.

According to the question,

Adam earns a base pay plus a commission for each car he sells at Crazy Carl's Cool Cars.

In the given function c is a variable.

Thus, c must show the number of cars.

Thus, the base pay must be free from any variable.

In the above expression 500 is free from the variable c therefore, 500 is the base pay of Adam.

f(c) is the total earning by Adam after selling a car.

If he Does not sell any car then c=0,

f(0) = 250×0+500 = 500

Therefore, if he does not sell any car then his earning is 500.

Write a quadratic function (f) whose zeros are −8 and 2.

Answers

[tex]\bf x=-8,2\quad \begin{cases} x=-8\implies &x+8=0\\ x=2\implies &x-2=0 \end{cases} \\\\\\ (x+8)(x-2)=\stackrel{original}{polynomial}\implies x^2+6x-16=y[/tex]

Kim drives 378 miles and uses 18 gallons of gasoline. At that rate, how many miles can she go on 24 gallons of gas?

Answers

Do 378 / 18
That equals 21

Then do 21 * 24
That equals 504

Conclusion: It would take 504 miles to go on for 24 gallons of gas.
Hi there! To solve this problem, you can do it by writing and solving a proportion. The proportion would be written like this: 378/18 = x/24. You do this, because you’re looking for the amount of miles you can go on 24 miles of gas and you already know the amounts of gallons, so they go at the bottom lines up with each other. Let’s cross multiply the values to get 9,072 = 18x. Now, divide each side by 18 to isolate the “x”. When you do that, x = 504. There. Kim can go 504 miles on 24 gallons of gas.

Describe how the variability of the x bar distribution changes as the sample size increases

Answers

As we increase the sample size, the variability of the x bar distribution will follow a normal distribution (i.e. bell shape curve). The more independent random variables we add to the population, the more it will correspond or approach to the population mean (proximity) thereby clustering the distribution towards the center (mean). This is the essence of central limit theorem. 

The standard deviation decreases and the sampling distribution becomes more normal as the sample size increases in x bar distribution.

The variability of the x bar distribution changes as the sample size increases. As the sample size increases, the standard deviation of the sampling distribution of the means will decrease, approaching the standard deviation of X. The sampling distribution of the mean becomes more normal as the sample size grows, showing less variability.

Fifty randomly selected individuals were timed completing a tax form. the sample mean was 23.6 minutes; the sample standard deviation was 2.4 minutes. a 99% confidence interval for the mean time required by all individuals to complete the form is about:

Answers

Given:
n = 50, sample size
[tex]\bar{x} = 23.6 \, min[/tex], sample mean
s = 2.4 min, sample standard deviation.

The confidence interval is
[tex]\bar{x} \pm t^{*} \frac{s}{ \sqrt{n} } [/tex]

At the 99% confidence level, t* (from the student's t-distribution) is 
t* = 2.68
Therefore
t*(s/√n) = 2.68*(2.4/√50) = 0.9096

The confidence interval is
(23.6-0.9096, 23.6+0.9096) ≈ (22.69, 24.51)

Answer: (22.7, 24.5)

Jim’s fundraiser BBQ needs to make at least $1000 in sales on Saturday. He sells hot dogs for $2 each and hamburgers for $3 each, and he wants to sell at least twice as many hamburgers as hot dogs. He brought 300 hot dogs and 800 hamburgers to sell. The graph shows the feasible region, where x represents the number of hot dogs sold and y represents the number of hamburgers sold. Which ordered pairs meet all the constraints for a successful fundraiser and make sense in context of the situation?

Select each correct answer.

(275, 0)

(100.5, 800.5)

(0, 350)

(250, 700)

(200, 350)

Answers

it's 0,350 and 250,700 i believe

John has six more nickels than dimes in his pocket for a total of 2.25 write an equation to determine the number of dimes, x in his pocket

Answers

You have to use let statements:
Let x = the number of dimes
Let x+6 = the number of nickles

We know that nickles are represented as $0.05 and dimes $0.10...
Together they make $2.25 right? So you have to add them.

0.05(x+6) + 0.10(x) = 2.25    => This is the equation the problem is asking for.

If they ask you how many nickels and dimes does John have in this pocket, then you have to solve for x, like this:
0.05x + 0.3 + 0.10x = 2.25       In this step you apply the ditributive property.
0.15x + 0.3 = 2.25                    In this step you combine like terms
0.15x = 2.25 - 0.3                     In this step you moved to +0.3 to the other side, but remember to switch the sign!
0.15x = 1.95                             In this step you subtract 2.25 and 0.3
x = (1.95) / (0.15)                     In this step you divide 0.15 in the right because in the left side of the equals sign it was multiplying. You get x by itslef.
x = 13                                       Latly, you divide and you get 13 as an answer

Now that the value of x is 13. You plug this number into the let statements.
We had:
x and x+6 which would be
x = 13
x+6 = 13+6 = 19
Which means that John has 13 dimes and 19 nickels in his pocket.

Other Questions
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