Answer:
x=285
Step-by-step explanation:
34 more than ( +34)
quotient of number and 15 (x/15)
is 53 (=53)
(-34)x/15+34=53(-34)
(15)x/15=19(15)
x=285
A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 are equivalent using substitution. The class has suggested four different methods.
Which describes the correct method?
Both expressions should be evaluated with one value. If the final values of the expressions are both positive, then the two expressions must be equivalent.
Both expressions should be evaluated with one value. If the final values of the expressions are the same, then the two expressions must be equivalent.
Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are positive, then the two expressions must be equivalent.
Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.
Answer: Both expressions should be evaluated with one value. If the final values of the expressions are the same, then the two expressions must be equivalent.
Step-by-step explanation:
4x - x + 5 = 8 - 3x - 3
Combine like terms
4x - x + 5 = 5 - 3x
Subtract x from 4x
3x + 5 = 5 - 3x
Add -3x to both sides
6x + 5 = 5
Subtract 5 from each side
6x = 0
Divide by 6
x = 0
Put 0 into the equation
4(0) - 0 + 5 = 8 - 3(0) - 3
Multiply
0 - 0 + 5 = 8 - 0 - 3
Subtract
5 = 5
Answer:
B
Step-by-step explanation:
A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A
marble is chosen at random from the jar and replaced. Then a second marble is chosen
at random. Find the probability of the first marble being green and the second marble
being yellow.
Answer:
We start with 11 marbles. The first marble selected is green, so P(green) = 2/11. Since this marble is replaced, we still have the same 11 marbles. The second marble selected is yellow, so P(yellow) = 3/11. It follows that P(green, then yellow) = (2/11)(3/11) = 6/121.
Enter the location of the point as an ordered pair.
When solving an inequality, you must ____________ the variable.
A. isolate
B. eliminate
explain your answer.
Answer:
isolate
Step-by-step explanation:
Hope's this helps
square root of 12 • by the square root of -1
Answer:
2i-/3
Step-by-step explanation:
This question involves imaginary numbers and simplifying radicals.
PLZ HELP WILL MARK AS BRAINLIEST
Answer:
C, due to 7 greater than 1
Which detail explains why police
suspected the thief worked at the
museum?
HELP QUICK
Answer:
C. The alarm and security cameras were off when the theft took place
Step-by-step explanation:
Answer:
C is the correct answer
Step-by-step explanation:
Find the value if x and simplify completely
Answer:
[tex] x = 9 \sqrt{10} [/tex]
Step-by-step explanation:
By Geometric mean property:
[tex]y = \sqrt{3 \times 27} \\ = \sqrt{81} \\ y = 9 \\ by \: pythagors \: theorem : \\ x = \sqrt{ {27}^{2} + {9}^{2} } \\ = \sqrt{(9 \times 3)^{2} + {9}^{2} } \\ = \sqrt{ {9}^{2} \times {3}^{2} + { {9}^{2} } } \\ = \sqrt{ {9}^{2} ( {3}^{2} + 1)} \\ = 9 \sqrt{9 + 1} \\ x = 9 \sqrt{10} [/tex]
Which of these values represents the largest distance?
A. 450 feet
B. 4,500 inches
C. 45 yards
D. 0.45 miles
Answer:
D. 0.45 miles
Step-by-step explanation:
Change all so they have a common measurement. Convert:
0.45 miles = 2376 feet.
450 feet = 450 feet.
45 yards = 135 feet
4500 inches = 375 feet.
0.45 miles is the largest distance.
~
Answer:
0.45 miles would be your answer.
Explanation:
I converted all of these into feet to see which one had a longer distance.
4500 inches = 375 feet
450 feet = 450 feet
45 yards = 135 feet
0.45 miles = 2376 feet
Is (-4,4) the solution of the system. 4x+5y>-6 and -2x+7y>20
Answer:
It is a solution, one of an infinite number of solutions.
Step-by-step explanation:
You can check to see if the given point is in the solution set:
4(-4) +5(4) = -16 +20 = 4 > -6 . . . . yes
-2(-4) +7(4) = 8 +28 = 36 > 20 . . . yes
The offered point satisfies both inequalities, so is in the solution set. It is not the solution, but is one of an infinite number of solutions.
The table below shows the ages of houses to the nearest year in a neighborhood. Using the age of the houses as the random variable, X, which graph shows the probability distribution, PX(x), of a randomly chosen house? HURRYYYYYYY!!!!!
Answer:
Find the probability distribution by dividing the number of houses in each category by the total number of houses. We find that Graph A most accurately shows the distribution.
Step-by-step explanation:
Let's start by finding the probability of randomly selecting a house in each category. To find the probability, divide the number of houses in the category by the total number of houses.
The total number of houses is 15 + 20 + 25 + 30 = 90. The number of 1 y/o houses is 15. Dividing these two numbers, we get 15/90 = 0.167
Make the same calculation for the other ages:
2 y/o: 20/90 = 0.222
3 y/0: 25/90 = 0.278
4 y/o: 30/90 = 0.333
Now, look at the graphs to determine which most closely matches these calculations. (Note: make sure to look closely at the axis.) That graph is A.
Math- Please answer a few ASAP! Thank you
Answer:
I also found all of the answers for that package
Step-by-step explanation:
The graph of a polynomial function is shown here.
Which statement about the polynomial function is true?
es
A)
It is of odd degree and has 3 real zeroes.
B)
It is of odd degree and has 2 real zeroes.
C)
It is of even degree and has 2 real zeroes.
D
It is of even degree and has 3 real zeroes.
Answer:
B
Step-by-step explanation:
The polynomial function shown in the graph is of even degree and has 2 real zeroes.
Explanation:The polynomial function shown in the graph appears to have 2 real zeroes. Since the degree of the polynomial cannot be determined from the graph alone, we cannot determine if it is of odd or even degree. Therefore, option A) and B) can be eliminated. Thus, the correct answer is C) It is of even degree and has 2 real zeroes.
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Sasha's school is due west of her house and due south of her friend Nina's house. The distance between the school and Nina's house is 8 kilometers and the straight-line distance between Sasha's house and Nina's house is 10 kilometers. How far is Sasha's house from school?
Answer:
6 km
Step-by-step explanation:
These three places form a right angle triangle
10² = 8² + x²
100 = 64 + x²
x² = 36
x = 6
Use trianglePQR to write the trigonometric ratio as a decimal. round to four decimal places.
q(x)=1/x^2+25
Find the domain of the rational function
Answer:
All real numbers
Step-by-step explanation:
The domain is the set of all real numbers, since q(x) is always defined.
What is the median of the data represented by the box plot?
Enter your answer in the box.
Answer:
20
Step-by-step explanation:
On average it takes Erika about minutes per mile less than Rita
Answer:
On average, Erika is much slower than Rita by 1 minute.
Step-by-step explanation:
There are two sets of data: Erika's and Rita's. Now, we have to find the average values for each of both and compare them. I would assume that the order of the presentation of data points is alternating, first for Erika followed by Rita. To illustrate what I mean, let's say in Day 1, Erika's time is 20 and Rita's time is 21.25. In Day 2, Erika's time is 21.5 and Rita's is 24.75. And so on and so forth. The complete tabulation is shown in the picture.
Erika's average = (20+21.5+22.75+23.25+20.25)/5 = 21.55
Rita's average = (21.25+24.75+23+23+20.75)/5 = 22.55
On average, Erika is much slower than Rita by 1 minute.
Helpppl!!! In 2011,Miami-Dade County had a population of about 2.55 million people and covered an area of about 5000 square kilometers. What was the approximate population density of Miami-Dade County in 2011? A) 5100 people per square kilometer. B)1960 people per square kilometer. C) 510 people per square kilometer. D) 196 people per square kilometer
Answer:
C) 510 people per square kilometer
Step-by-step explanation:
Population Density = Population/Area
= 2,550,000/5000
= 2,550/5
= 510 people per square kilometer
The approximate population density of Miami-Dade County in 2011 was 510 people per square kilometer.
What is population density?Population density is a measurement of population per unit of land area.
Given that, in 2011,Miami-Dade County had a population of about 2.55 million people and covered an area of about 5000 square kilometers.
We need to find the population density of Miami-Dade County in 2011
So,
To calculate the population density, you will divide the population by the size of the area.
Thus, Population Density = Number of People/Land Area.
The unit of land area should be square miles or square kilometers.
Therefore,
= 2,550,000/5000
= 2,550/5
= 510 people per square kilometer
Hence, the approximate population density of Miami-Dade County in 2011 was 510 people per square kilometer.
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What happens when you multiply or divide by a negative number in a inequality
Answer:
Flip the inequality sign!
Step-by-step explanation:
There is one very important exception to the rule that multiplying or dividing an inequality is the same as multiplying or dividing an equation. Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign.
Which type of graph would you choose to show the test scores for a whole class arranged in Intervals?
bar graph
Circle graph
histogram
line graph
Answer:
---------bar graph
Step-by-step explanation:
Tell whether the angles are adjacent or vertical. Then find the value of x.
the answe
Step-by-step explanation:
the answer is 20
The angles are supplementary angles. Then the value of the variable 'x' will be 20.
What is an angle?The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360 °.
Supplementary angle - Two angles are said to be supplementary angles if their sum is 180 degrees.
Angle 7x and angle (x + 20) is the supplementary angles. Then the equation is given as,
7x + x + 20 = 180
Simplify the equation, then we have
7x + x + 20 = 180
8x = 160
x = 20
The angles are supplementary angles. Then the value of the variable 'x' will be 20.
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PLEASE HELP 20 POINTS AND BRAINLIEST IM TAKING AN INTEREM
Answer:
maybe the second one
Step-by-step explanation:
PLZ MARK BRAINLIEST DESPARATE FOR POINTS
Answer:
It's probably the fourth one
The box plots below show the average daily temperatures in January and December for a U.S.city:
January
December
What can you tell about the means for these two months? (1 point)
Answer:
There is no way of telling what the means
Step-by-step explanation:
I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo
My answer:
There is no way of telling what the means are because we do not the exactly number of the average daily temperatures even the narrow IQR for January is but we can not make sure it is lower than the IQR for December when having no real number.
Hope it will find you well.
What effect will multiplying by 3 have on f(x)?
Answer:For a positive value k, the graph of y=kf(x) is obtained from the graph of y=f(x) by scaling in the vertical direction. In coordinates, if (x0,y0) is on the graph of y=f(x), then that point moves to (x0,ky0) on the graph of y=kf(x). Any point on the x-axis remains fixed (as then y=0). When k>1, the graph is stretched vertically (away from the x-axis), while if 0<k<1, the graph is compressed vertically (toward the x-axis).
Another way to think about this: The graph of y=kf(x) is exactly the same as the graph of y=f(x) if the y-axis is scaled so that 1 is relabeled k, 2↦2k, −1↦−k, etc.
Step-by-step explanation:
A rectangular prism is shown below:
What is the volume of the prism?
Question 2 options:
140 in3
104 in3
186 in3
168 in3
Answer:168
Step-by-step explanation:
Which steps would you take to solve this equation? Check all that apply.
4p = 12
Divide by 4 on both sides of the equation.
Divide by 12 on both sides of the equation.
StartFraction 4 Over 4 EndFraction = 1 and StartFraction 12 Over 4 EndFraction = 3, so p = 3.
Substitute 12 for p and multiply to check the solution.
Substitute 3 for p and multiply to check the solution.
The correct steps are:
- Divide by 4 on both sides of the equation.
- Substitute 3 for p and multiply to check the solution.
To solve the equation 4p = 12, the following steps would be taken:
1. Divide by 4 on both sides of the equation. This step would simplify the equation to p = 12/4.
2. Substitute 12 for p and multiply to check the solution. This step would involve substituting 3 for p and multiplying, not substituting 12.
3. Substitute 3 for p and multiply to check the solution. This step is the correct approach to verify if the value of p obtained is a solution to the original equation.
So, the correct steps are:
- Divide by 4 on both sides of the equation.
- Substitute 3 for p and multiply to check the solution.
Answer:
it's A,C,E
Step-by-step explanation:
here is proof
Which relation is a function?
Of
Mark this and return
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In mathematics, a relation is a function if each input has a unique output. This one-to-one correspondence distinguishes functions, vital for modeling relationships and solving mathematical problems.
In mathematics, a relation is considered a function if each input (or element from the domain) corresponds to exactly one output (or element in the range).
Every element in the domain is associated with a unique element in the range.
A function is a specific type of relation between two sets, usually called the domain and the range.
In a function, each element in the domain is paired with exactly one element in the range.
Function Notation:
If f is a function, we often use the notation f(x) to represent the output (or value in the range) corresponding to the input x in the domain.
Key Criteria for a Relation to be a Function:
Domain-Range Pairs: Each element in the domain must be paired with an element in the range.
Uniqueness: Each element in the domain must have a unique partner in the range. No two different elements in the domain can have the same output.
Testing for a Function:
Vertical Line Test: If any vertical line intersects the graph of the relation at more than one point, the relation is not a function.
Mapping Diagram: A mapping diagram can visually represent the pairing of elements from the domain to the range.
Example:
Consider the relation where each person is paired with their date of birth. This is a function because each person has a unique date of birth.
Notation for Functions:
A function f is often denoted as f:A→B, where A is the domain and B is the codomain.
Therefore, a relation is a function if each input value maps to only one output value.
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The above question is incomplete, the complete question is:
Explain which relations are known as function ?
How do I find x???????
Answer:
Step-by-step explanation:
x=30
Right traingles angles add up to 90 degrees so 30+60=90
I dont understand what the 14 is up there for though
I am very late for this question ;w;
convert 3.5 gallons to litres
Answer: 13.2489 Liters
Step-by-step explanation:
Answer:
[tex]13.2489l[/tex]