Kevin but 4 bags of gravel to cover the bottom of his fish think he has a pound of gravel left over how much gravel did Kevin used to cover the bottom of his tank

Answers

Answer 1
(3x - 8) pounds of gravel was used to cover the bottom of sinks, where x is the weight of bag of gravel.
Step-by-step explanation:
We are given the following information in the question:
In order to answer this question we need to make the following assumption
Let x pound be the weight of one bag of gravel.
Total number of bags of gravel bought by Kevin = 3
Weight of 3 bags of gravel = 3x pounds
Amount of gravel left after pouring = 8 pounds
Amount of gravel used to cover the bottom of sink =
Formula:
Amount of gravel used to cover the bottom of sink = amount of gravel brought - amount of gravel left = 3x-8

Thus, (3x - 8) pounds of gravel was used to cover the bottom of sinks.
All but 8 pounds

Related Questions

8 - 9(9n + 2) = 2(-5 + 11n)

Answers

Answer:

-103n = 0

Step-by-step explanation:

Watch my following steps:

8 - 81n - 18 = -10 + 22n

8 - 81n - 22n = -10 + 18

-81n - 22n = 8 - 8

-103n = 0

Pls consider marking my answer as Brainliest! It would mean a lot!

what is the solution to 5/6x - 1/3 > 1 1/3?
A. x > 25/18
B. x < 25/18
C. x > 2
D. x < 2​

Answers

Step-by-step explanation:

we are looking for the inequality of X

i can tell from this question that the first 2 are wrong, which leaves the last 2

first step, we add 1/3

5/6x> 1 2/3

now we divide 1 2/3 by 5/6 which gives us 2

taking a look at the sign posted in the question, i can confirm that C is correct

The answer is D or B

Find the perimeter of the image below

Answers

Answer:

There isn't an image...

Step-by-step explanation:

There’s no image tho

The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answer as a whole number or fraction in simplest form.
Please help me 22 points and a THANK YOU WITH 5 STAR RATING:))))

Answers

Answer:

Scale factor = [tex] \frac{5}{4} = 1\frac{1}{4} [/tex]

Step-by-step explanation:

The scale factor is how much the right triangle on the right was increased in size or enlarged, since the right triangle is a scaled copy of the one on the left.

The scale factor used = the ratio of any of their corresponding sides

Scale factor = side length of the ∆ on the right ÷ corresponding side length of the ∆ on the left

Scale factor = [tex] \frac{15}{12} [/tex]

Scale factor = [tex] \frac{5}{4} = 1\frac{1}{4} [/tex]

The scale factor expressed as a fraction is 4/5

Since the right triangle on the right is a scaled copy of the right triangle on the left, then the ratio of their similar sides is equal to the scale factor.

This is expressed as:

Taking the ratio of the fractions

[tex]\frac{20}{25} = \frac{4}{5}[/tex]

Similarly for [tex]\frac{12}{15}[/tex]

[tex]\frac{12}{15} =\frac{4}{5}[/tex]

This shows that [tex]\frac{20}{25} = \frac{12}{15} = \frac{4}{5}[/tex]

Hence the scale factor expressed as a fraction is 4/5

Learn more here: https://brainly.com/question/9386516

Evelyn wants to estimate the proportion of people who own a tablet computer. A random survey of individuals finds a 95% confidence interval to be (0.62,0.78). What is the correct interpretation of the 95% confidence interval

Answers

Answer:

The correct interpretation of the 95% confidence interval is that there is 95% confidence that the true proportion of people who own a tablet computer is within the upper limit (0.78) and  the lower limit (0.62) of the confidence interval

Step-by-step explanation:

From the question we are told that

  The  95% confidence interval  is  (0.62,0.78)

Generally the correct interpretation of the 95% confidence interval is that there is 95% confidence that the true proportion of people who own a tablet computer is within the upper limit (0.78) and  the lower limit (0.62) of the confidence interval

Based on this poll, find a 95% confidence interval to estimate the percentage of U.S. adults who feel that access to healthcare is the most urgent health problem facing this country. Interpret your interval in context.

Answers

Answer:

Confidence Interval Meaning, Implication, Formula

Step-by-step explanation:

95% confidence interval is the range around the stable estimate, which has 95% certainty (or probability) of containing true population parameter.

Formula : x' + z (s/ √n)

Where : x' = sample mean, confidence level value, s = standard deviation, sample size

By using sample size, sample mean, sample standard deviation of US people 'considering health care access most important' - & using above formula - range containing actual population proportion (with 95% sure probability) thinking the same.

If (3x2 – 5x + 5y - 2) is subtracted from (2x” + x - 1), what is the coefficient of x in the result?
O A. 2
OB. 6
OC. 4
OD. -1

Answers

Answer: 4

Explanation: -5x + x = -4x

Write the equation of the line:
(-5,-3); slope = -3/5

Answers

Answer:

that is correct

Step-by-step explanation:

your welcome

Answer:

-3/5x+6

Step-by-step explanation:

I'm assuming they want it in slope-intercept form, because that's more common. If it's not then I will be wrong. See screenshot for proof.

I need help, I don’t get this math question. 2. Using exponents, what is the simplified form of 15x6/3x2
F. 5x4
G. 5x3
H. 5x
I. 5

Answers

Answer:

F.   [tex] 5x^{4} [/tex]

Step-by-step explanation:

[tex] \dfrac{15x^6}{3x^2} = [/tex]

[tex] = \dfrac{3 \times 5}{3} \times \dfrac{x^6}{x^2} [/tex]

[tex] = 5 \times x^{6 - 2} [/tex]

[tex] = 5x^4 [/tex]

What is Five less than twice a number
2w - 5
or 5 - 2w

Answers

2w - 5

This is the right expression

Please help I am taking a test! I will reward brainiest if you are correct (the picture is attached) for number 11!!

Answers

Answer:

I confirm that the person above me is right.

Step-by-step explanation:

Enjoy your brainliest ;)

A math professor wears for each class a combination of : one of their three hats (red, blue,green); one of their pants (black, blue, white, green); one of their shirts (white, red, black);and one of their pair of shoes (black, red, blue, white). They never wear combinations withthree items of the same color. How many different combinations are wearable?

Answers

Answer:

There are 36 ways in which he can wear combinations with three items of the different color.

Step-by-step explanation:

Hat              Pants           Shirts           Shoes

red             black             red              black

blue           blue               black           red

green        green             white            blue

                 white                                  white

If we look carefully we see that he can choose any hat, any pant and any shirt but he can choose only one pair of shoes that does not match with any of the three.

3C1*4C1*3C1*4C4= 3*4*3* 1= 36

There are 36 ways in which he can wear combinations with three items of the different color.

The two parallelograms below are similar.

Answers

Answer:

C, 34 inches

Step-by-step explanation:

1. We can see that 30 is the length of one of the sides on the larger parallelogram. The same side has a length of 12 inches on the smaller one. So, we need the difference of these 2 to figure out PQ.

30 - 12 = 18 inches (the difference)

2. Add 18 to 16 (the bottom side on the small parallelogram) to figure out what the bottom side of the large parallelogram would be.

16 + 18 = 34 inches (answer C)

What is the largest three-digit number divisible by 5, 6, and 21?

Answers

Answer:

840

Step-by-step explanation:

You can divide by 5 and get 168

840/6 = 140

840/21 = 40

Answer:

The largest 3 digit number divisible by 5, 6, & 21 is 840.

What 2 numbers that are the same make 2025?

Answers

Answer:

45

Step-by-step explanation:

Square root 2025 and you will get 45

45 times 45= 2025

Answer:

Step-by-step explanation:

If you are multiplying then 45 * 45 = 2025

If you are adding then 1012.5 + 1012.5 = 2025

pls say if it is, i need to know fast

Answers

need to know what ? ma

Solve ab - c= d for a

Answers

Answer:

a=(d+c)/b

Step-by-step explanation:

a*b-c=d

a*b=d+c

a=(d+c)/b

Answer:

c+d /b

Step-by-step explanation:

Which number line represents all of the values of x for the equation x^2 = 64? (5 points)

Answers

Answer:

8

Step-by-step explanation:

x=8 because if you take the square root of 64 you get 8 so that means 8^2= 64

Answer:

C) I got it right

Step-by-step explanation:

Solve
9x2-5x = 94x-8

Answers

Answer:

x=26262626262626...

Step-by-step explanation:

g 5 points It is known that a certain lacrosse goalie will successfully make a save 80% of the time. (Assume that all save attempts are independent.) Suppose that the lacrosse goalie attempts to make 12 saves. (Round answers to three decimal places.) (a) What is the probability that the lacrosse goalie will make at least 10 saves

Answers

Answer:

The probability that the lacrosse goalie will make at least 10 saves is 0.558.

Step-by-step explanation:

Let X denote the number of saves the lacrosse goalie will successfully make.

It is provided that the probability of the lacrosse goalie making a successfully save is, p = 0.80.

It is assumed that all save attempts are independent.

Suppose that the lacrosse goalie attempts to make n = 12 saves.

The random variable X follows a binomial distribution with parameters n = 12 and p = 0.80.

Compute the probability that the lacrosse goalie will make at least 10 saves as follows:

[tex]P(X\geq10 )=P(X=10)+P(X=11)+P(X=12)[/tex]

                 [tex]={12\choose 10}(0.80)^{10}(0.20)^{2}+{12\choose 11}(0.80)^{11}(0.20)^{1}+{12\choose 12}(0.80)^{12}(0.20)^{0}\\\\=0.2835+0.2062+0.0687\\\\=0.5584\\\\\approx 0.558[/tex]

Thus, the probability that the lacrosse goalie will make at least 10 saves is 0.558.

Ken builds a porch in the shape of an isosceles trapezoid.

What is the area, in square feet, of Ken’s porch?

Answers

Answer:

In square feet, Ken's porch is 180² ft.

Answer: 120

Step-by-step explanation:

Base x height / 2 (I think)

the residents of a city voted on whether to raise property taxes. the ratio of yes votes to no votes was 3 to 5 . if there were 1992 yes votes what wss the total​

Answers

747 votes for yes
1245 votes for no

1. The weights of 20 year old vegetarian women are normally distributed with a standard deviation σ = 15 pounds. How large of a sample would be need to estimate the mean weight μ of 20 year old vegetarian women with a margin of error of 5 pounds with 95% confidence?

Answers

Answer:

34.5744 ≈ 35

Step-by-step explanation:

The formula for Margin of Error

= z × σ/√n

Where

z = z score of the confidence interval = z score of 95% = 1.96

σ = 15 pounds

n = number of samples = ??

Margin of Error = 5

Hence,

5 = 1.96 × 15/√n

Cross Multiply

5 × √n = 1.96 × 15

Divide both sides 5

√n = 1.96 × 15/5

√n = 1.96 × 3

√ n = 5.88

Square both sides

n = 5.88²

n= 34.5744

Approximately the size = 35

In physics, the Ideal Gas Law describes the relationship among the pressure, volume, and temperature of a gas sample. The law is represented with the formula PV = nRT, where P is the pressure, V is the volume, T is the temperature, n is the amount of gas, and R is a physical constant. Select all the equations that are equivalent to the formula PV = nRT. Group of answer choices
A. P = VnRT
B. R = PVnT
C. V = nRT / P
D. n = PV / RT
E. T = nR / PV
Also Theres Another Question
The temperature in degrees Kelvin is 273 degrees less than the temperature in degrees Celsius. Use the formula C = 5/9(F - 32) to write a formula for the temperature in degrees Fahrenheit F in terms of the temperature in degrees Kelvin K. A. F = 9/5(K - 273) - 32
B. F = 5/9(K + 273) + 32
C. F = 9/5C + 32
D. F = 9/5(K + 273) + 32
Also Please Answer My other Question I posted

Answers

Answer:

1. D and C

2. F = 9/5(k-273) + 32

Step-by-step explanation:

1. We simply want to write the given equation in different forms;

PV = nRT

So P = nRT/V

R = PV/nT

V = nRT/P

n = PV/RT

T = PV/nR

So the correct expressions are;

D, C,

2. we want to make F the subject of the formula, that would be;

C = 5/9(F - 32)

9C = 5(F - 32)

divide both sides by 5

9C/5 = F - 32

F = 9C/5 + 32

But K = C + 273

So C = K - 273

Insert this into the equation, we have

F = 9(K-273)/5 + 32

Solve for x.
2x-1+12=6x+3

Answers

Answer:

es pepo cumbia

o PVP TU PON LA SALA Y YO LA HUMILLACIÓN

Answer:

2x-1+12=6x+3

X = 2

Explain:

2x-1+12=6x+3

2x+11+6x+3

( 2x+11 )+(-11-6x)=(6x + 3) + (-11  - 6x)

so that means

X=2

Select the equation for the line parallel to y = -4x + 10 that
contains P(4,1).

Answers

Answer:

the third answer

Step-by-step explanation:

parallel lines will have the same slope (in this case -4) and you plug in the points

An open box is to be made from a ft by ft rectangular piece of sheet metal by cutting out squares of equal size from the four corners and bending up the sides. Find the maximum volume that the box can have.

Answers

Answer:

432 cm[tex]^{3}[/tex]

Step-by-step explanation:

The volume of the box can be determine by using derivative function:

V = (18 - 2x) (18 - 2x) x

dV/dx = 4x^3 + 324 + 144x

equating to zero;

(x - 9) (x - 3) = 0

x = 9 , 3

putting the values in the equation;

V = (18 - 2 [3]) (18 - 2[3]) 3

volume = 432.

Find the value of x that makes lines u and v parallel. ​
Please help!

Answers

-1 + 9x = 8x + 9

1x = 10

x = 10

The value of x is 10.

What is the opposite of the reciprocal of –2.4?

Answers

2.4 = 24/10 = 12/5

, 2.4 = 12/5 =5/12

Answer:

2.4

Step-by-step explanation:

And if your trying to find the hundredth it would be 0 and 0 is less than 4 so it goes down

g a box has a square base of side x and height h find the dimensions x, h for which the volume is 14 and the surface area is as small as possible

Answers

Answer:

Step-by-step explanation:

Base area =[tex]x^2[/tex]

side area=[tex]h*x[/tex]

Volume=[tex]x^2*h[/tex]=14

Surface area =[tex]4hx+2x^2[/tex]

upon substituting [tex]h=14/x^2[/tex]

surface area = [tex]4*\frac{14}{x^2}*x+2x^2[/tex]

upon differentiating and solving we get  f"([tex]\sqrt[3]{14\\}[/tex]) >0 proves that this point is of minima

hence, dimensions are

[tex]x=\sqrt[3]{14}[/tex] ,h=[tex]\sqrt[3]{14}[/tex]

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