Mathematics High School

I WILL GIVE BRAINLY! PLEASE HELP! PLEASEEEEE!!
Bob walks up to a tank of water that can hold 75 gallons. When it is active, a drain empties water from the tank at a constant rate. When Bob first sees the tank, it contains 15 gallons of water. 4 minutes later, the tank contains 12 gallons of water.

A. At what rate is the amount of water in the tank changing? answers: 3/4, -3, -3/4, 3
B. How many more minutes will it take for the tank to drain completely?
C. How many minutes before Bob arrived was the tank completely full?

Answers

Answer 1

Answer:

A) -3/4

B) 15 more minutes

C) 80 minutes

Step-by-step explanation:

Answer 2

A. rate of change = -3/4

B. 16 minutes

C. 1 hour 20 minutes

What is slope?

The slope is defined as the ratio of the vertical change between two points, the rise, to the horizontal change between the same two points, the run.

Given:

A) At first the tank contain 15 gallons of water.

After 4 minutes the tank contain 12 gallons of water.

So, rate of change

=12-15/4-0

=-3/4

B) now, Let x be the number of minutes will it take for the tank to drain completely.

So,

(3/4 gallons per minute) *x = 12 gallons

x = 12*4/3

x = 16 minutes

C) As, the tank has capacity of 75 gallons.

So, the tank of water is full when there is 10 gallons of water which is 60 gallons more.

Let 'y' be the number of minutes before Bob arrived when the water tank was completely full.

(3/4) (y) = 60

y = 60*4/3

y= 80 minutes

y= 1 hour 20 minutes

Learn more about slope here:

https://brainly.com/question/14548961

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Related Questions

Identify the slope and y-intercept
y = -2/3x -3
m =
b =

Answers

Answer:

m=-2/3 b=-3

Step-by-step explanation:

Simplify the following expressions (pleas help I know it’s a lot...)

Answers

Answer:

1. C

2. A

3. C

Hope this helps :)

Step-by-step explanation:

Find the exact length of the third side.
4
2

Answers

Answer is 2 because the one that is on my phone

please help me !!:)

Answers

y= -1/2x-3 hope this helped!!

I need both of these.

Answers

Answer:

Step-by-step explanation:

First method: for (x+3)^2 if you multiply (x+3)(x+3) you get x^2+6x+9 which doesn't equal x^2+9

Second way: plug in a variable for example (2+3)^2= 25 and 2^2+9=13 so 13 doesn't equal 25

which is the slope of a line that contains A (3,4) and B (2,2)

Answers

(4-2) / (3-2) = 2/1 = 2
The slope is 2

The answer is the slope is 2

What is 8 7/10 as an improper fraction

Answers

8 7/10 as a improper fraction is 87/10

list 4 rational numbers between -2 and -1

Answers

Answer:

-1.25

-1.30

-1.50

-1.75

Step-by-step explanation:

There's more than 4 correct answers but...

Answer:

1.75, -1.875, -1.9375, -1.46875

Step-by-step explanation:

The measures of three angles of a triangle are given by (x - 5)°, (3x)º, and
(x + 10)°. What is the value of x?

Answers

Answer:

x = 35º

Step-by-step explanation:

(x - 5)°+ (3x)º+ (x + 10)° = 180º

5x + 5 = 180º

5x = (180 - 5 )º

5x = (175 )º

x = 35º

The ratio of students wearing sandals to those wearing sneakers is 5 : 1. If there are 30 students in the class, and all of them are wearing either sandals or sneakers, how many of them are wearing sandals?can someone anwser this plz:(

Answers

Step-by-step explanation:

5:1 = 5

= 5 × 30

any standing alone is on one so

6 × 30

1 1

180

Write the point-slope form of the line that passes through (–7, 8) and has a slope of –5.

Answers

Answer: y = -5x + 20

Step-by-step explanation:

Remember that : y=mx+b

y = (-5)x + b

Now you can plug your coordinates (-7,8) into that equation.

8 = (-5)-7 + b

Solve for b

8 = -12 + b

Add +12 to both sides of your equation:

20 = b

Now, your new equation is:

y = -5x + 20

IS IT A OR B OR C OR D

Answers

Answer:

its b or c hope this helps

Step-by-step explanation:

can i please have brainliest

7a. Find the PERIMETER of the figure.
6 mm
2 mm
2 mm
a) 14.42 mm
b) 19.42 mm
c) 24.84 mm
d) 13.84 mm

Answers

The answer is b. 19.42. :)

Answer:

The Perimeter figure is: 21.42 mm

Step-by-step explanation:

The given figure consists of two parts:

1) Semicircle

2) Square

Determining the Perimeter of the Semicircle:

Given

Diameter d = 6 mm

Radius r = d/2 = 6/2 = 3 mm

In a semi-circle, the perimeter is made up of half the circumference (arc) of the circle and the diameter of the circle.

Perimeter = 1/2 × ( circumference of the circle ) + d

= 1/2 × (2πr) + d

= πr + d

= 3.14(3) + 6

= 9.42 + 6

= 15.42 mm

Thus, the Perimeter of the semi-circle is: 15.42 mm

Determining the Perimeter of the Square:

Given

Length of a side = a = 2mm

Perimeter of square = 4a = 4(2) = 8mm

Thus, the Perimeter of the Square is: 8mm

Now, in order to determine the Perimeter of a complete figure, we need to add the Perimeter of the square and the perimeter of the semicircle and subtract 2 mm.

The reason why we need to subtract 2mm because one side of the square (2mm) is overlapped along the diameter of the semicircle.

Now,

Figure Perimeter = Perimeter of square + Perimeter of Semicircle - 2

= 8 + 15.42 - 2

= 21.42 mm

Therefore, the Perimeter figure is: 21.42 mm

Note: It seems you may have missed adding the correct choice there.

I am stuck on this question please help me:)

Answers

Answer:

Step-by-step explanation:

the answer is 270

hope this helps

Answer:

c 270

Step-by-step explanation:

it just flips around the center

PLEASE-PLEASE-PLEASE HELP!!!

Answers

Answer:

the answer is C

Step-by-step explanation:

It’s c
If I’m not wrong

Which is the graph of f(x) = (4)*?

Answers

its 2 +93+9202+820201+2829202038374

BRAINLIEST! URGENT!

Answers

The answer is B .........

Calculate the following interest : 15% of $70 for 7 years

Answers

After investing for 7 years at 15% interest, your $70 investment will have grown to $186.20

explanation:
You can calculate Interest on your loans and investments by using the following formula for calculating simple interest: Simple Interest= P x R x T ÷ 100, where P = Principal, R = Rate of Interest and T = Time Period of the Loan/Deposit in years.

Use I'Hopital's Rule more than once to rewrite the limit in its final form as lim x --> 0
lim x --> 0 e^x -sinx - 1/ x^4 + 7x^3 + 8x^2

Answers

To compute the limit

[tex]\displaystyle\lim_{x\to0}\frac{e^x-\sin x-1}{x^4+7x^3+8x^2}[/tex]

notice that when x = 0, both the numerator and denominator converge to 0. Apply l'Hopital's rule once gives

[tex]\displaystyle\lim_{x\to0}\frac{e^x-\cos x}{4x^3+21x^2+16x}[/tex]

but again, this returns the indeterminate form 0/0. Applying again gives

[tex]\displaystyle\lim_{x\to0}\frac{e^x+\sin x}{12x^2+42x+16}[/tex]

so that the numerator converges to e⁰ + sin(0) = 1, and the denominator converges to 12•0² + 42•0 + 16 = 16.

So the limit is 1/16.

Vineisha earned 22 out of 20 points on her science quiz over the phases of the moon due to an extra credit question. What percent did she earn on the quiz?

Answers

Vineisha earned 110 percent on the science quiz which was about the phases of the moon.

How to calculate the percent earned ?

Vineisha earned 22 out of 20 points on her science quiz over the phases of the moon

The percent earned can be calculated by dividing 20 by 22 and then multiplying the result by 100

22/20 × 100

= 1.1 × 100= 110

Hence the percent she earned on the quiz is 110%

Answers

Answer:

y intercept is (0,8) and the slope is 2 or 2/1 (its the same thing)

Step-by-step explanation:

i dont know the first answer sorry :( and to find the y-intercept its just where the line crosses the y-axis. slope is just rise over run and you go up 2 and to the right 1, so its 2/1 :) hope this helped!

-72 = -8(11 + s)
what value of s is a solution to this equation ?

Answers

The value of s would be -2

So -2=s

Use compatible number to estimate the quotient 635 divided by 9

Answers

Answer:

127

Step-by-step explanation:

dont ask me to explain

What is the value of x in the equation 2x - 3 = 9- 4x? o 6 o 3 O 1 02

Answers

Answer:

x = 2

Step-by-step explanation:

2x - 3 = 9 - 4x ( add 4x to both sides )

6x - 3 = 9 ( add 3 to both sides )

6x = 12 ( divide both sides by 6 )

x = 2

The measure of {x} in the equation -3 = 9 - 4x is {x} = 3

What is function?

A function is a relation between a dependent and independent variable. We can write the examples of function as -

y = f(x) = ax + b

y = f(x, y, z) = ax + by + cz

Given is to find the value of {x} for the equation -

- 3 = 9 - 4x

The given equation is -

- 3 = 9 - 4x

We can write that -

- 3 = 9 - 4x

4x = 9 + 3

4x = 12

x = 3

Therefore, the measure of {x} in the equation -3 = 9 - 4x is {x} = 3.

To solve more questions on functions, visit the link below-

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273=7(2n+3)
URGENT
NEED WORK SHOWN
NEED WORK SHOWN

Answers

Answer:

Step-by-step explanation:

Distribute the 7 to get 273=14n+21

Subtract 21 to get 14n=252

Divide by 14 to get 18

Answer:

N=18

Step-by-step explanation:

Distribute~ 273=14n+21

Minus 21 to both sides~ 273-21=14+21-21

Divide your 14 to get rid of your variable~ 14n/14=252/14

Which would equal •18•

PLEASE HELP!! VERY IMPORTANT!!! THIS IS 10 POINTS !!! ILL MARK FIRST PERSON BRAINLIEST!

Answers

Answer:

y=4x-2

Step-by-step explanation:

HELP PLZZZ WHATS 2+2+5+9+100-76=?

Answers

Answer:

Step-by-step explanation:

"alexa what's 2+2+5+9+100-76" Imao

it's easy so the answer is 42

HELP!! Joe is 1 yard 2 feet away from finishing the race. How many
inches does Joe need to finish the race?
A.60 inches
B.108 inches
C.36 inches
D.24

Answers

Answer:

60 inches

Step-by-step explanation:

There are 12 inches in a foot.

There are 3 feet in a yard.

With this information, Joe is 5 feet away from finishing the race, but we need that answer in inches.

So if one foot equals 12 inches, we will simply multiply:

5ft × 12 in = 60 inches

(Hope this helps :) )

therr are 15 boys and 16 girls in a classroom. Write the following ratio:boys to girls

Answers

Answer:

15:16 boys to girls

Step-by-step explanation:

15:16 that’s just how your write the answer

Solve.

4×[52×(3×15)+32]-5=

Answers

Answer: 9483

Step by step

= 4(52)(45)+32)−5

= 4(2340+32)−5

= (4)(2372)−5

= 9488–5

= 9483

Other Questions

Why is living in the country better then living in the city come up with 5-6 reasons? Who would most likely have said the following? Read these paragraphs and answer the question that follows:In 2008, more than one million American students gave nearly 20 million service hours to their communities. They made a difference in peoples lives and learned some important life lessons in the process. Organizations, including schools, are actively promoting service for all citizens as a way to be involved, help others, and improve themselves.Service is helping other people and being active in your community. For example, one group of teens planted a community garden with their friends. They grow a variety of vegetables. The garden requires regular care. The teens donate the produce to a local soup kitchen. Workers there use the produce to help feed people in the community. By tending the garden and donating their produce, the teens are actively helping make life a bit better for others in their community.Service is valuable in ways that cannot be measured in dollars. People volunteer or serve others without expecting money or gifts in return. Service is not about earning money. It is not just collecting money to give to a group. It is about action and contributing to the common good. The people who serve as well as those who receive help benefit in many ways that are more important than money or gifts. For example, a soup kitchen provides essential food to people who may otherwise go hungry. The soup kitchen is extremely valuable for those struggling to get enough to eat. Those serving learn about compassion and how helping others can improve life for all.Millions of Americans are making society better for themselves and for others. They are participating citizens in their community, raising up those who are less fortunate. In return, they become better people who can understand the perspectives and needs of others, which are invaluable and important qualities of good citizens.Read these paragraphs and answer the question that follows:In 2008, more than one million American students gave nearly 20 million service hours to their communities. They made a difference in peoples lives and learned some important life lessons in the process. Organizations, including schools, are actively promoting service for all citizens as a way to be involved, help others, and improve themselves.Service is helping other people and being active in your community. For example, one group of teens planted a community garden with their friends. They grow a variety of vegetables. The garden requires regular care. The teens donate the produce to a local soup kitchen. Workers there use the produce to help feed people in the community. By tending the garden and donating their produce, the teens are actively helping make life a bit better for others in their community.Service is valuable in ways that cannot be measured in dollars. People volunteer or serve others without expecting money or gifts in return. Service is not about earning money. It is not just collecting money to give to a group. It is about action and contributing to the common good. The people who serve as well as those who receive help benefit in many ways that are more important than money or gifts. For example, a soup kitchen provides essential food to people who may otherwise go hungry. The soup kitchen is extremely valuable for those struggling to get enough to eat. Those serving learn about compassion and how helping others can improve life for all.Millions of Americans are making society better for themselves and for others. They are participating citizens in their community, raising up those who are less fortunate. 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