concrete can be made by mixing cement, sand and gravel in the ratio 3: 6: 8 How much gravel is needed to make 850 m^3 of concrete.
Answers
The given ratio is 3:6:8 referring to cement, sand, and gravel, respectively.
Based on the given information, we can express the following
\(3x+6x+8x=850\)Now, we solve for x
\(\begin{gathered} 17x=850 \\ x=\frac{850}{17} \\ x=50 \end{gathered}\)Now, we find the gravel using the ratio
\(8x=8\cdot50=400\)Hence, they needed 400 cubic meters of gravel.Related Questions
Find the area of the figure
Answers
Answer:
pls use the formula given to you
Answer:
the area of the figure is 10,700
Step-by-step explanation:
3
\(3 \sqrt{81} \)
what's the answer
Answers
Answer will be 27.
Given,
3√81
Now, to solve the expression the squares of whole numbers and square roots for some numbers must be known.
For example, squares of
1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
9² = 81
10² = 100
Square roots,
√100 = 10
√81 = 9
√64 = 8
√49 = 7
√36 = 6
√25 = 5
√16 = 4
√9 = 3
√4 = 2
√1 = 1
Now ,
3√81 = 3× 9
= 27.
Thus the value is 27.
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please help me solve this
Answers
The area of triangle EFG is given as follows:
A = 18.63 square units.
How to obtain the area of a triangle?The area of a rectangle of base b and height h is given by half the multiplication of dimensions, according to the formula presented as follows:
A = 0.5bh
The base is given by segment EF as follows:
\(EF = \sqrt{(9 - 4)^2 + (-7 -(-9))^2}\)
EF = 5.4.
The midpoint of EF is given as follows:
M(6.5, -8).
The height is given by the segment MG as follows:
\(MG = \sqrt{(6.5 - 3)^2 + (-2 - (-8))^2}\)
MG = 6.9.
Hence the area is given as follows:
A = 0.5bh
A = 0.5 x 5.4 x 6.9
A = 18.63 square units.
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I’ll give points and brainalist for answer / explanation
Answers
Answer:
B. 48 cm²Step-by-step explanation:
The area between the concentric circles:
A = π(R² - r²)If we tale π ≈ 3, we know R = 5 cm, we see r = R - 2 = 5 - 2 = 3 cm, then
A = 3(5² - 3²) = 3(16) = 48 cm²Correct choice is B
The ratio of red starburst to yellow starburst in the bag is 8 to 3. There are 40 red starburst in the bag, how many are yellow?
Answers
I cannot find x.
All i knowis that 4x+50+150+____=360
good luck :)
wait i got the answer ;)
please help
Answers
Answer:
x=25
Step-by-step explanation:
The angles marked in the diagram are vertical angles. This means they are congruent. So, to find x set them equal to each other and solve algebraically.
4x+50=150
First, subtract 50 from both sides
4x=100
Then, divide both sides by 4
x=25
2. Seiji and Gavin both worked hard over the summer. Together they earned a total of $425. Gavin earned $25 more than Seiji.
(a) Write a system of equations for the situation. Use s for the amount Seiji earned and g for the amount Gavin earned.
(b) Graph the equations in the system.
(c) Use your graph to estimate how much each person earned
Answers
Answer:
(A) s + g + ( g + 25) = 425
Step-by-step explanation:
Yolanda is riding in a bike race that goes through a valley and a nearby mountain range,The table gives the altitude (in feet above sea level) for the five checkpoints in the race,Use the table to answer the questions,CheckpointAltitude(feet above sea level)12,2242- 13731,5714-305218(8) How much lower is Checkpoints than check out 2909 i lower
Answers
Step 1
Write the given checkpoint altitude
Checkpoint 1 = 2224
Checkpoint 2 = -137
Checkpoint 3 = 1571
Checkpoint 4 = -39
Checkpoint 5 = -218
Step 2:
a) How much lower is checkpoint 5 than checkpoint 2
You will subtract checkpoint 5 altitude from checkpoint 2
\(\begin{gathered} =\text{ -137 - (-218)} \\ =\text{ -137 + 218} \\ =\text{ 81 f}eet \end{gathered}\)b) Altitude of the top hill that is 365 above checkpoint 5.
\(\begin{gathered} \text{Altitude of the top hill = 365 - 218 } \\ \text{Altitude of the top hill 365 above checkpoint 5 = 147} \end{gathered}\)
How many liters each of a 10 % acid solution and a 40 % acid solution must be used to produce 60 liters of a 35 % acid solution? (Round to two decimal places if
necessary.)
Answers
Hence , 10 liters of a 10% acid solution and 50 liters of a 40% acid solution must be used.
System of Equations: Setting up a system of equations containing the 2 unknown values, the substitution technique is also accustomed acquire associate degree equation with just one of the unknowns. The ensuing equation could then be resolved to search out the worth of the remaining unknown. From here, the second worth is also obtained by subbing the primary worth back to at least one of the equations.Let the amount of 10 % acid solution be " x " and the amount 40 % acid solution be " y " .
The total volume of the resulting solution is 60 L which can be given by
x + y = 60 .....(1)
The total acid in the resulting solution is 35 % acid solution which is given by 0.10 x + 0.40 y = 0.35(60) .....(2)
Multiplying by 100 in equation (2) , we get
10 x + 40 y = 2100 .....(3)
Putting x = 60 - y in equation (3) , we get
10 ( 60 - y ) + 40 y = 2100
600 - 10y + 40y = 2100
30y = 1500
y = 50
Putting y = 50 equation (1) , we get
x = 60 - 50 = 10
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Can someone help with this please? I think it has to do with the Pythagorean theorem.
Answers
Answer:
2 sqrt(13)
Step-by-step explanation:
We can use the Pythagorean theorem
The x value between A and B is 4 units and the y value is 6 units
The distance is
d = sqrt( x^2 + y^2)
= sqrt( 4^2 + 6^2)
= sqrt( 16+36)
= sqrt(52)
= sqrt(4*13)
= 2 sqrt(13)
Determine if the ratios are equivalent: 12:16 and 72:96 *
10 points
Equivalent
Not Equivalent
Answers
Answer:
Step-by-step explanation:
12 : 16
Both have 4 in common
3 : 4
72 : 96
Both have 12 in common
6 : 8
Both have 2 in common
3 : 4
So both the ratios are equivalent
Can someone help with this question?✨
Answers
By translating (shifting) the graph of f(x) vertically downward by 2 units and right 5 units, the formula for g(x) is equal to g(x) = 2√(x - 5) - 2.
The types of transformation.Generally, there are different types of transformation and these include the following:
DilationRotationReflectionTranslationWhat is a translation?A translation can be defined as a type of transformation which moves every point of the object in the same direction, as well as for the same distance.
Since the graph of f(x) is translated (shifted) vertically downward by 2 units and right 5 units, the formula for g(x) would be given by:
Note: f(x) = 2√x
To translate (shift) vertically downward by 2 units, we would subtract 2:
g(x) = 2√x - 2
To shift right by 5 units, we would replace the value of x with (x - 5):
g(x) = 2√(x - 5) - 2
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14) Which of the following is NOT a rational number?a. product of 15 and .25b. sum of 2/5 and 1/2c. the sum of 2+√√4 and 15-√4d. product of 20 and √6
Answers
If we multiply 20 by squareroot 6, the answer would be 20(squareroot6). So it is a rational numbersquare root.
But in a, if we multiply 0.25 that is 1/4, by 15 it will be 15/4, so. itis a rational number
In b:
\(\frac{2}{5}+\frac{1}{2}=\frac{4+5}{10}=\frac{9}{10}\)It is rational.
However, let's do the operation.
\((2+\sqrt{4})+(15\text{ - }\sqrt{4})=(2+2)+(15\text{ - }2)=4+13=17\)Therefore, it is a natural number and not a rational. The answer is c
Complete the table. Answer should be T or F.
P Q
T F P V Q P ^ Q P -> Q -P -Q -P V -Q -P -> Q -P -> -Q P <-> Q
F T P V Q P ^ Q P -> Q -P -Q -P V -Q -P -> Q -P -> -Q P <-> Q
Answers
P Q P V Q P ^ Q P -> Q -P -Q -P V -Q -P -> Q -P -> -Q P <-> Q
T T T T T F F F F F T T
F T T F F T T T T T F F
P F T F F T T T T T F F
-P T T F F T T T T T F F
-Q T T T T F T F F F T T
-P V -Q T T F F T T T T T F
-P -> Q T T F F T T T T T F
-P -> -Q T T F F T T T T T F
P <-> Q T T T T F T T T T F
Here is a more detailed explanation of how I filled out the table:
P | Q : This column is simply the truth value of P and Q. If P and Q are both true, then the entry in this column is T. If P is true and Q is false, then the entry in this column is F. If P is false and Q is true, then the entry in this column is F. And if P and Q are both false, then the entry in this column is T.
P V Q : This column is the truth value of P or Q. If P is true, then the entry in this column is T. If Q is true, then the entry in this column is T. And if P and Q are both false, then the entry in this column is F.
P ^ Q : This column is the truth value of P and Q. If P and Q are both true, then the entry in this column is T. And if P and Q are both false, then the entry in this column is F.
P -> Q : This column is the truth value of P implies Q. If P is true and Q is false, then the entry in this column is F. And if P is false or Q is true, then the entry in this column is T.
-P : This column is the negation of P. If P is true, then the entry in this column is F. And if P is false, then the entry in this column is T.
-Q : This column is the negation of Q. If Q is true, then the entry in this column is F. And if Q is false, then the entry in this column is T.
-P V -Q : This column is the truth value of not P or not Q. If P and Q are both true, then the entry in this column is F. If P and Q are both false, then the entry in this column is T. And if P or Q is true, then the entry in this column is T.
-P -> Q : This column is the truth value of not P implies Q. If P is true and Q is false, then the entry in this column is T. And if P is false or Q is true, then the entry in this column is F.
-P -> -Q : This column is the truth value of not P implies not Q. If P and Q are both true, then the entry in this column is T. If P is false or Q is false, then the entry in this column is T. And if P is true and Q is true, then the entry in this column is F.
P <-> Q : This column is the truth value of P if and only if Q. If P and Q are both true or P and Q are both false, then the entry in this column is T. And if P and Q have different truth values, then the entry in this column is F.
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You are saving money to buy a new video game. You already have $12, and each week you save another $5. Which expression can you use to represent the money you have after 'w' weeks?
Answers
Answer:yes 12 +5
Step-by-step explanation:Idrk
Answer:
12 + 5
Step-by-step explanation:
Find the domain and the range of the relation. Determine whether the relation is a function.
{(-3,1),(2,1),(-3,6),(-8,-6)}
.....
The domain is
(Use a comma to separate answers as needed.)
(ANSWER QUICKLY)
Answers
Answer:
Domain = -3, 2, -8
Range = 1, 6, -6
Function? No
Step-by-step explanation:
Domain = x-values(no repeats)
Domain = -3, 2, -8
Range = y-values(no repeats)
Range = 1, 6, -6
Function?
No, the domain is repeating. Range can repeat but domain cannot
For more info about deciding if its a function or not, learn about the VLT
(vertical line test)
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
The sum of two numbers is 15 and the difference is 4. Let the two numbers be x and y.
Write down a pair of simultaneous equations involving x and y. Solve the equations.
Answers
Answer:
x=9.5 and y=5.5
Step-by-step explanation:
x+y=15
x-y=4
add
2x=19
x=9.5
y=15-9.5
y=5.5
x=9.5 and y=5.5
6. Explain what must occur to the parent
function f(x) = x² to transform the
function to g(x) = (x-4)² +2.
Answers
Answer:
4 units right, 2 units up
Step-by-step explanation:
For \(g(x)=(x-4)^2+2\), the graph of \(f(x)=x^2\) would need to move 4 units to the right and 2 units up. Hence, the vertex would be \((4,2)\) if we compare the function g(x) with the form \(y=a(x-h)^2+k\).
On my chicken farm where I have 24 pens, the pens were a bit crowded.
So I built 6 more pens, and the number of chickens in each pen reduced
by 6. How many chickens do I
A HUNDRED POINTS
Answers
The number of chickens on the farm will be 180.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
On my chicken farm where I have 24 pens, the pens were a bit crowded.
So I built 6 more pens, then
The total number of pens in the farm = 24 + 6 = 30
6 chickens in each pen
So, 6 x 30 = 180 chickens.
Hence, The number of chickens on the farm will be 180.
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Determine the appropriate test to be used in the next statements.
An archeologist is calculating the distribution of the frequency of the number of artifacts she finds in a dig site. Based on previous digs, the archeologist creates an expected distribution broken down by grid sections in the dig site. Once the site has been fully excavated, she compares the actual number of artifacts found in each grid section to see if her expectation was accurate.
An economist is deriving a model to predict outcomes on the stock market. He creates a list of expected points on the stock market index for the next two weeks. At the close of each day’s trading, he records the actual points on the index. He wants to see how well his model matched what actually happened.
A personal trainer is putting together a weight-lifting program for her clients. For a 90-day program, she expects each client to lift a specific maximum weight each week. As she goes along, she records the actual maximum weights her clients lifted. She wants to know how well her expectations met with what was observed.
A meteorologist wants to know if East and West Australia have the same distribution of storms.
A pharmaceutical company is interested in the relationship between age and presentation of symptoms for a common viral infection. A random sample is taken of 500 people with the infection across different age groups.
The owner of a baseball team is interested in the relationship between player salaries and team winning percentage. He takes a random sample of 100 players from different organizations.
A marathon runner is interested in the relationship between the brand of shoes runners wear and their run times. She takes a random sample of 50 runners and records their run times as well as the brand of shoes they were wearing.
Answers
The statistical test that can be used for the given statements is; the goodness-of-fit test
How to determine the best statistical tests?
1) For the archeologist story, the goodness-of-fit test is the best and most relevant test that can be applied because the archaeologist wishes to determine if her prediction was correct by comparing the actual number of artefacts recovered in each grid section to the expected frequencies.
2) The economist generates a list of expected stock market index points for the next two weeks, as well as the actual points at the end of each trading day. The economist then compares the actual and expected points to ensure that the model he constructed is accurate. As a result, economists can use the goodness-of-fit test in this study.
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The Shah family basement floor is shaped like a tropezoidal. The basement has sides of 36 feet and 24 feet and two sides of 21 feet. They are going to carpet the basement. The carpeting will cost $35 per square yard. What is the area, in square feet, of the basement floor?
Answers
The area in square feet of the the basement floor that is trapezoidal is 603.6 feet square.
Area of a trapezium
area = 1 / 2 (a + b)h
where
a and b are the base of the trapeziumh = height of the trapezium.Therefore,
a = 24 ft
b = 36 ft
h² = 21² - 6²
h² = √405
h = 20.1246117975
h = 20.12 ft
Therefore,
area = 1 / 2 (24 + 36)20.12
area = 603.6 ft² = 67.066667 yard²
Therefore,
1 yard² = $35
67.1 yard² = ?
cost of carpeting = 35 × 67.1 = $2348.5
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There are 2,380 seats in the auditorium. There were 35 seats in each row of the auditorium. how many rows are there?
Answers
Answer:
There are 68 rows
Step-by-step explanation:
2,380 divided bye 35 is 68
Answer: 68 rows
Step-by-step explanation:
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the sum of four times a number and eight is between zero and twelve. find the range of numbers. write a compound inequality.
Answers
4 times the number is 4x
the sum of 8 and 4 times a number is 28
4x+8=28
4x=28-8
4x=20
x=20/4
x=5
A manufacturer has an order from flower shop to make gift boxes. A gift box is to be constructed from a piece of cardboard 60x60 cm by cutting out squares from the corners and folding up the sides. What is the size of cut out that will provide a gift box of maximum volume?
Answers
To maximize the volume we need to cut squares with a side length of 20cm.
How to maximize the volume?
Suppose that the length of the sides of the squares that we cut is X, that will be the height of the box, then its volume will be:
V = (60 - X)*(60 - X)*X
Now we just need to maximize that cubic equation.
V = X*( X^2 - 120*X + 3600)
V = X^3 - 120X^2 + 3600X
To maximize this we need to differentiate it and find the value of X that makes it equal to zero, we will get:
V' = 3*X^2 - 2*120*X + 3600
V' = 3*X^2 - 240*X + 3600
Now we make this equal to zero:
3*X^2 - 240*X + 3600 = 0
The solutions are given by the quadratic formula:
\(X = \frac{240 \pm \sqrt{240^2 - 4*3600*3} }{2*3} \\\\\\X = \frac{240 \pm 120 }{6}\)
We will take the smaller solution:
X = (240 - 120)/6 = 20
Because the other solution makes the volume equal to zero.
This means that we need to cut squares with a side length of 20 cm.
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The measure of angle A is 68°. The measure of angle B is 22°. Which statement best describes the relationship between these two angles?
Answers
Answer:
They are complementary angles.
Step-by-step explanation:
The sum of their measurements equals 90 degrees.
A cylinder has a height of 19 meters and a radius of 10 meters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth
Answers
Answer:
Pi times radius to the power of two times the height
Step-by-step explanation
i gave you the formula now solve
A man gave 5/12 of his money to his son , 3/7 of the remainder to his daughter and the remaining to his wife if his wife gets rs 8700 what is the total amount
Answers
The total amount the man had = 52,200 rupees. Out of this, he gave 21,750 rupees to his son, 13,050 rupees to his daughter, and 17,400 rupees to his wife , the total amount given away by the man = 21,750 + 13,050 + 17,400 = 52,200 rupees.
A man gave 5/12 of his money to his son, 3/7 of the remainder to his daughter, and the remaining to his wife. If his wife gets Rs. 8,700, what is the total amount?
The given problem can be solved using the concept of ratios and fractions. Let us solve the problem step-by-step.Assume the man had x rupees with him.The man gave 5/12 of his money to his son.
The remaining amount left with the man = x - 5x/12= (12x/12) - (5x/12) = (7x/12)The man gave 3/7 of the remainder to his daughter.'
Amount left with the man after giving it to his son = (7x/12)The amount given to the daughter = (3/7) x (7x/12)= (3x/4)The remaining amount left with the man = (7x/12) - (3x/4)= (7x/12) - (9x/12) = - (2x/12) = - (x/6) (As the man has given more money than what he had with him).
Therefore, the daughter's amount is (3x/4) and the remaining amount left with the man is (x/6).The man gave all the remaining amount to his wife.
Therefore, the amount given to the wife is (x/6) = 8700Let us find the value of x.x/6 = 8700 x = 6 x 8700 = 52,200
Therefore, the man had 52,200 rupees with him.He gave 5/12 of his money to his son. Therefore, the amount given to his son is (5/12) x 52,200 = 21,750 rupees.
The remaining amount left with the man = (7/12) x 52,200 = 30,450 rupees.He gave 3/7 of the remainder to his daughter. Therefore, the amount given to his daughter is (3/7) x 30,450 = 13,050 rupees.
The amount left with the man = (4/7) x 30,450 = 17,400 rupees.The man gave 17,400 rupees to his wife.
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A typical tip in a restaurant is 15% of the total bill.if the bill is 60$ what would the typical tip be
Answers
Answer:
60(.15)= 9
answer is 9
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use the multiplication rule to find the probability that the first four guesses are wrong and the fifth is correct. That is, find
Answers
Complete question is;
Multiple-choice questions each have 5 possible answers, one of which is correct. Assume that you guess the answers to 5 such questions.
Use the multiplication rule to find the probability that the first four guesses are wrong and the fifth is correct. That is, find P(WWWWC), where C denotes a correct answer and W denotes a wrong answer.
P(WWWWC) =
Answer:
P(WWWWC) = 0.0819
Step-by-step explanation:
We are told that each question has 5 possible answers and only 1 is correct. Thus, the probability of getting the right answer in any question is =
(number of correct choices)/(total number of choices) = 1/5
Meanwhile,since only 1 of the possible answers is correct, then there will be 4 incorrect answers. Thus, the probability of choosing the wrong answer would be;
(number of incorrect choices)/(total number of choices) = 4/5
Now, we want to find the probability of getting the 1st 4 guesses wrong and the 5th one correct. To do this we will simply multiply the probabilities of each individual event by each other.
Thus;
P(WWWWC) = (4/5) × (4/5) × (4/5) × (4/5) × (1/5) = 256/3125 ≈ 0.0819
P(WWWWC) = 0.0819
Pie chart values
20%. Rice
15%. Others
Pulses. 30%
maize 20%
wheat 15%
Percentage distribution of products in exports of the
given countries.
(a) What is the value (in $ billion) of pulses export
by US? on a billion
(6)
What is the ratio of wheat export of UK to
maize export of IND? 4:10
(e) By what percentage is the maize export of
JAP more than the rice export of AUS?
(d) If the export of AUS is doubled and that of US is
halved but percentage distribution of products of
export remains the same, then find the value of
Export of Rice by US
Export of Pulses by AUS
In USSR, find the ratio of maize export to the
rice export.
Answers
a.) The value of pulses exported by US in billion would be=30 billion.
b.) The ratio of wheat export of UK to maize export of IND would be= 6:5
How to calculate the value of pulses exported?For question a.)
To calculate the pulses, the following steps should be taken as follows:
From the bar chart, the value of pulses in billions = 30 billions.
For question b.)
The ratio of wheat export at UK and maize export at IND would be calculated as follows:
The quantity of wheat export at UK = 24
The quantity of maize export at IND = 20
Therefore, the ratio of wheat to maize = 24:20= 6:5
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