7x-3=18
What is x in the question i cbat figure it out
Answers
+3 for both sides
7x = 21
devide 7 for both sides
x = 3
Related Questions
In the diagram below, what is the approximate length of the minor arc ?
A. 36 cm
O
B. 72 cm
23 cm
120*
ОО
C. 48 cm
D. 24 cm
Answers
Answer:
The approximate length of the minor arc would be 48 cm.
Answer:
C
Step-by-step explanation:
Order the following from highest to lowest.
1.Soprano
2.Tenor
3.Bass
4.Alto
Answers
Answer:
1,4,2,3
Step-by-step explanation:
Soprano – A high female (or boy’s) voice
Alto – A low female (or boy’s) voice
Tenor – A high (adult) male voice
Bass – A low (adult) male voice
Given that ABCD is a rhombus, what is the value of x?
Answers
Answer:
E. 18.6
Step-by-step explanation:
The diagonals of a rhombus bisect each other at right angles. The means all of the triangles shown are right triangles, and the two marked angles are complementary.
__
solve for xComplementary angles total 90°.
(x°) +(4x -3)° = 90° . . . . . the marked angles are complementary
5x = 93 . . . . . . . . . . . . divide by °, add 3
x = 93/5 = 18.6 . . . . . divide by the coefficient of x
The value of x is 18.6.
A nurse is collecting data about babies. Write down the type of data in each case.
a. Length
b. Date of birth
c. Mass
d. Age of mother
e. Color of eyes
answer with english, thanks :)
Answers
(a)Length - Quantitative
(b) Date of birth - Qualitative
(c)Mass- Quantitative
(d)Age of mother - Quantitative data.
(e)Color of eyes - Qualitative data.
What are data in statistics?Data are individual pieces of factual information recorded and used for the purpose of analysis.
A nurse is collecting data about babies.
Data are classified as two major types quantitative and qualitative data.
Quantitative data is also a numerical data in which it represents the numerical value.
Qualitative data is a non-numerical data in which it represents the quality or characteristics of the data collected.
(a)Length - it is a numerical value - Quantitative data
(b)Date of birth - It is a numerical value but it is not have mathematical sense.
So it is qualitative data.
(c)Mass - It is numerical value - Quantitative data.
(d)Age of mother - Quantitative data.
(e)Color of eyes - It describes the color(characteristics) of eyes - Qualitative data.
Hence, the data are classified accordingly.
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Consider the quadratic function.
f(p) = p2 – 8p – 5
What are the values of the coefficients and the constant in the functio
Answers
The values of the coefficients and constant are 1, -8 and -5
Standard quadratic equation
The standard quadratic expression is given as:
y = ax^2 + bx + c
where a, b and c are the constant
Given the quadratic function f(p) = p2 – 8p – 5, on comparing:
a = 1
b = -8
c = -5
Hence the values of the coefficients and constant are 1, -8 and -5
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a rectangle's length is 5 inches greater than its width. if the perimeter of the rectangle is 42 inches, find the length. (all answers are given in inches.)
Answers
A rectangle's length is 5 inches greater than its width. if the perimeter of the rectangle is 42 inches, then the length is 13 inch.
What is a rectangle?A rectangle is a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal; or a parallelogram containing a right angle. A rectangle with four sides of equal length is a square.
here, we have,
a rectangle's length is 5 inches greater than its width.
if the perimeter of the rectangle is 42 inches
let, width = x
then, length = x+5
so, perimeter= 2(x+5 +x)
= 4x+10
ATQ, 4x+10 = 42
solving we get,
x=8
the length = 13
Hence, A rectangle's length is 5 inches greater than its width. if the perimeter of the rectangle is 42 inches, then the length is 13 inch.
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ZA and ZB are
supplementary angles. If m≤A = (2x − 4)° and
m/B = (4x − 14)˚, then find the measure of ≤A.
-
Answers
So, because you know the angles are supplementary, you can put them into an equation like so:
(2x-4)+(4x-14)=180
6x-18=180
x=33
So plug that back into for angle A:
2(33) - 4
angle A = 62
6-3. Review what you know about graphs as you complete parts (a) through (d) below
a. Find the equation of the line graphed at right.
b. What are its x- and y-intercepts?
d. On the same set of axes, graph a line that is parallel to the line graphed at right and
that goes through the origin (0, 0).
Find the equation of this new line.
Answers
The equation of the graph is y = -2x + 1
The intercepts are y = 1 and x = -1/2The parallel equation is y = -1/2xThe equation of the graphFrom the question, we have the following points on the line
(0, 1) and (1, -1)
A linear equation is represented as
y = mx + c
Where
c = y when x = 0
So, we have
y = mx + 1
Using the points, we have
m + 1 = -1
m = -2
So, the equation is y = -2x + 1
The interceptsIn (a), we have
c = 1
This is the y-intercept
For the x intercept, we have
-2x + 1 = 0
This gives
x = 1/2
Plot of a parallel lineParallel lines have equal slopes
This means that the slope must be -1/2
Because the line must go through (0, 0), the equation is y = -1/2x
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the amount of all coffee served at a coffee shop is having a normal distribution with a mean of 12 ounces and a standard deviation of 2 ounces. a) what is the approximate mean of the sampling distribution of samples means if many samples of 4 cups of coffee are sampled?
Answers
The approximate mean of the sampling distribution of sample means is 12 ounces
To find the mean of the sampling distribution of sample means, we need to use the formula
μM = μ
where μM is the mean of the sampling distribution of sample means, and μ is the population mean.
In this case, the population mean is 12 ounces. Since we are sampling 4 cups of coffee, the sample size is n = 4. The standard deviation of the sampling distribution of sample means can be calculated using the formula
σM = σ/√n
where σ is the population standard deviation.
Substituting the given values, we get:
σM = 2/√4 = 1
Therefore, the approximate mean of the sampling distribution of sample means is
μM = μ = 12 ounces
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if RS=2x+6 ST=x+4 and RT=40 find RS
Answers
ANSWER:
STEP-BY-STEP EXPLANATION:
\(undefined\)cool beans is a locally owned coffee shop that competes with two large coffee chains, planeteuro and frothies. alicia, the owner, hired two students to count the number of customers that entered each of the coffee shops to estimate what percent of people who are interested in coffee are visiting each shop. after a week, the students found the following results: 606 visited cool beans, 810 visited planeteuro, and 1,160 visited frothies. the students were surprised that cool beans had 148 visits on monday which represented 60% of all people who visited one of the three coffee shops on mondays. how many people visited one of the three coffee shops on monday?
Answers
48.15% people visited one of the three coffee shops on monday
The scholars discovered that;
518 people went to Cool Beans, 974 to Planet Euro, and 1,160 to Frothies.
Assume that x% of Monday's customers at each of the three coffee shops were x.
One hundred thirty-five people went to Cool Beans on Monday.
Of the total number of customers who went to one of the three coffee shops on Monday, 52% went to Cool Beans.
Consequently, 52/100 * x = 135
The calculation for x is (135*100)/52.
x = 260 individuals
On Monday, the following number of visitors visited either PlanetEuro or Frothies:
260-135 =125
Calculating the percentage of Monday visitors to either PlanetEuro or Frothies;
135= 52%
125=?
Cross-product as you
(125*52)/135 =48.15%
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b. Is there a pattern in the table? Explain.
Answers
Answer:
no photo
Step-by-step explanation:
we need a photo to decide if answer is correct or not
what is the name for a data value that is far above or below the rest?
Answers
The name for a data value that is far above or below the rest is called an outlier.
An outlier is an observation that deviates significantly from other observations in a dataset. It is an extreme value that lies outside the typical range of values and may have a disproportionate impact on statistical analyses and calculations. Outliers can occur due to various reasons, including measurement errors, data entry mistakes, or genuine rare events. Identifying and handling outliers appropriately is important in data analysis to ensure accurate and reliable results.
When dealing with outliers, it is important to assess whether they are the result of errors or genuine extreme values. Statistical techniques, such as box plots, scatter plots, or z-scores, can be used to detect outliers. Once identified, the appropriate action depends on the nature and cause of the outliers. In some cases, outliers may need to be corrected or removed from the dataset, while in other cases, they may provide valuable insights or require further investigation.
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Angelinas grandfather gave her all the money he had in his pocket to buy. A raffle ticket that coast $1 each for her cheerleading fundraiser determine the independent quantity and the dependent quantity in the problem situation
Answers
Answer
independent quantity is the raffle tickets and the dependent is the amount of money
Step-by-step explanation: i believe im sorry if this is wrong
All of these have to be estimated using the chart shown^
1- 11% of 507
2-26% of 91
3-34% of 91
4-48% of 124
5-20% of 66
6- 47% of 80
7-48% of 202
8-74% of 39
9-30% of 118
10-20% of 42
11-arnold ate breakfast at a restaurant. The total cost of his food, juice, and coffee was $6.45. If the sales tax rate is 8% and Arnold wants to leave a 20% tip. how much should he pay
12- rodneys weekly gross pay is $91. He must pay 32% of taxes and deductions. estimate rodneys weekly take home after deductions.
Answers
each character in a password is either a digit [0-9] or lowercase letter [a-z]. how many valid passwords are there with the given restriction(s)? length is 13.
Answers
There will be 4,738,381,338,321,616,896 possible valid passwords that can be created using 13 characters with the given restrictions.
The problem is asking for the number of valid passwords that can be created using 13 characters. Each character can either be a digit or a lowercase letter, meaning that there are 10 possible choices for each character (0-9) for digits and 26 possible choices for each character (a-z) for lowercase letters.
Since there are 13 characters in the password, we need to calculate the number of possible combinations of characters, which is found by multiplying the number of choices for each character together. Therefore, the total number of valid passwords is:
number of choices for each character ^ number of characters in the password
= (10 + 26)¹³
= 36¹³
= 4738381338321616896
Therefore, there are 4,738,381,338,321,616,896 possible valid passwords that can be created using 13 characters with the given restrictions.
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3. Determine the value of x if:
3.1. 75x -15 =5x + 125
3.2. 6(3x - 2) = 7(x + 3) +2
3.3.10/x-3= 8
3.4. x + 7 = 5x - 13
3.5. 20x +4 =4x - 46
Answers
Step-by-step explanation:
3.1.
your question
75x-25=5x+125
collect like terms
70x=150
Divide both side by the coefficient of x
70x/70=150/70
70 ti cancel 70 on x side to leave x alone
:. x=150/70 or 2.14
3.2.
6×(3x-2)=7×(x+3)
multiply by the bracket
18x-12=7x+21
collect like terms
18x+7x=21+12
25x=33
divide by the coefficient of x
25x/25=33/25
x=33/25 or 1.32
3.3.
10/x-3=8
cross multiply(know that 8 is /1)
x‐3×8=10×1
8x-24=10
8x=10+24
8x=34
divide both sides by coefficient of x
8x/8=34/8
8x=34/8 or 4.25
3.4.
x+7=5x-13
collect like terms
7+13=5x-x
20=4x
divide both sides by the coefficient of x
20/4=4x/4
5=x
:.x=5
3.5.
20x+4=4x-46
collect like terms
20x-4x=-46-4
16x=-52
divide both sides by the coefficient of x
16x/16=-52/16
:.x=52/16 or 3.25
Which of the following could be an example of a function with a domain
(-∞0,00) and a range (-∞,4)? Check all that apply.
A. V = -(0.25)* - 4
-
□ B. V = − (0.25)*+4
c. V = (3)* +4
□ D. V = − (3)* — 4
-
Answers
The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4
A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.
From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.
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given you have declared an array as int ar[45][14][10][10][43][50]; and you are accessing it at ar[29][1][3][0][17][20]; what is the equivalent single dimensional index?
Answers
The resulting index value represents the position of the desired element in a hypothetical one-dimensional array formed by collapsing all the dimensions of the original multidimensional array into a single dimension.
The equivalent single-dimensional index for accessing the element ar[29][1][3][0][17][20] in the array int ar[45][14][10][10][43][50] can be calculated as follows:
First, we need to determine the number of elements before the desired element in each dimension. Starting from the outermost dimension:
The size of the first dimension is 45, so there are 45 elements in each block of size 14x10x10x43x50.
The size of the second dimension is 14, so there are 14 elements in each block of size 10x10x43x50.
The size of the third dimension is 10, so there are 10 elements in each block of size 10x43x50.
The size of the fourth dimension is 10, so there are 10 elements in each block of size 43x50.
The size of the fifth dimension is 43, so there are 43 elements in each block of size 50.
The size of the sixth dimension is 50.
To calculate the equivalent single-dimensional index, we multiply the number of elements in each dimension by the respective size of the block and sum them all together. In this case, it would be:
Index = (29 * (14 * 10 * 10 * 43 * 50)) + (1 * (10 * 10 * 43 * 50)) + (3 * (10 * 43 * 50)) + (0 * (43 * 50)) + (17 * 50) + 20
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Simplify the following expression.
5(-7y + 2x) + 14 + 3x
Answers
Answer:
The answer should be -35y + 13x + 14. As you can clearly see, you can't break it down any further than this. That's because y and x are completely different. Plus, 14 isn't part of a variable.
solve for w: x=7w-8z-4
Answers
Answer:
W=x/7+ 8z/7 + 4/7
Step-by-step explanation:
The price of an item yesterday was $180. Today, the price rose to $261. Find the percentage Increase.
Answers
Answer:
145%
Step-by-step explanation:
When you want to find the percent of increase you need to divide the new price by the old price and move the decimal over two spaces to the right to make it a percent.
261/180=1.45=145%
a carpenter and his assistant can do a piece of work in 3 days. if the carpenter himself could do the work alone in 5 days, how long would the assistant take to do the work alone?
Answers
The number of days spent or taken by assistant with work efficiency of 2 units per day to do the work alone is equals to the 7.5 days.
We have provide that there is a carpenter and his assistant can do a piece of work.
Number of days taken by both carpenter and his assistant to do a piece of work = 3 days.
Number of days taken by carpenter and to do the same piece of work alone = 5 days.
We have to determine number of taken by assistant and to do the same piece of work alone.
Let the required number of days that the assistant take to do the work alone be 'x days'. As we know, total available work units = LCM (3,5) = 15 units
Ability or efficiency of a person or man is calculated by dividing the total work units to the number of working days spent to do the work.
Now, Ability or efficiency of both carpenter and his assistant work together = 15/5
= 3 units/day
Similarly, Ability or efficiency of carpenter = 15/3
= 5 units/day
So, Ability or efficiency of assistant= 5 - 3 = 2 -(1)
Using efficiency formula, efficiency of assistant
= 15/x --(2)
from (1) and(2), 15/x = 2
=> 2x = 15
=> x = 7.5
Hence, required number of days are 7.5 days.
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Which ordered pair would form a proportional relationship with the point graphed below?
(–40, 20)
(–10, –20)
(15, –30)
(5, –15)
Answers
Answer:
(c) (15, -30)
Step-by-step explanation:
A proportional relationship has the equation ...
y = kx
The value of the constant of proportionality is the ratio of y to x:
k = y/x = 40/-20 = -2
__
The point that is on the line y = -2x is the point (15, -30).
The bar graph shows the results of rolling a number cube (die) 50times. What is the experimental probability of rolling each of the number on the number cube?
Column A Column B
1. a. 18%
2. b. 8%
3. c. 22%
4. d. 16%
5. e. 20%
6.
Answers
c. 22%
Step-by-step explanation:
sorry for no explanation
Over which interval does g have a negative average rate of change? Please answer ASAP!
Answers
Answer:
b
Step-by-step explanation:
when x is -2, y is 7
when x is -1, y is 5
we can see y is decreasing and it continues to decrease until x is 3
The average rate of change is -12/5 for the interval [-2, 3] which is the negative average rate of change option (B) is correct.
What is the rate of change?It is defined as the change in values of a dependent variable with respect to the independent variables.
It is given that:
A function g(x) is shown in the table.
As we know the average rate of change of a function can be given:
The average rate of change = change in y values/change in x values
For the interval [1, 5]
The average rate of change = (2-0)/(5-1) = 2/4 = 1/2
For the interval [-2, 3]
The average rate of change = (-5-7)/(3+2) = -12/5
For the interval [-5, 0]
The average rate of change = (3-0)/(0+5) = 3/5
For the interval [-4, -1]
The average rate of change = (5-2)/(-1+4) = 3/3 = 1
Thus, the average rate of change is -12/5 for the interval [-2, 3] which is the negative average rate of change option (B) is correct.
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Need help asap please
Answers
Answer:
Fatima
Step-by-step explanation:
just follow where the point is to get the ordered pair lol
NG
ments
An airplane takes off with a full tank of 40,000 gallons of fuel and flies at an average speed of 550 miles per
hour. After 8 hours in flight, there are 13,000 gallons of fuel left. It will take another 2.5 hours for the plane
to reach its destination. Assuming that fuel consumption over time is a linear function, (a) how much fuel
will be left in the tank when the plane lands? (b) What is the total distance of the flight?
Show your solving process (algebraic steps, diagrams, models, graphs, tables, and/or any other problem-
solving tools you used) and state your answers to the two questions in complete sentences.
Answers
To answer these questions, we need to determine the fuel consumption rate and use it to calculate the fuel left and total distance.
a) Find the fuel consumption rate:
The airplane used 40,000 - 13,000 = 27,000 gallons of fuel in 8 hours.
Fuel consumption rate = 27,000 gallons / 8 hours = 3,375 gallons/hour.
b) Calculate the fuel left after 2.5 more hours:
Fuel used in 2.5 hours = 3,375 gallons/hour × 2.5 hours = 8,437.5 gallons.
Fuel left when the plane lands = 13,000 gallons - 8,437.5 gallons = 4,562.5 gallons.
c) Find the total distance of the flight:
Total flight time = 8 hours + 2.5 hours = 10.5 hours.
Total distance = average speed × total flight time = 550 miles/hour × 10.5 hours = 5,775 miles.
So, (a) there will be 4,562.5 gallons of fuel left in the tank when the plane lands, and (b) the total distance of the flight is 5,775 miles.
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Answer both parts of the question with all of the numbers pls
Answers
f(x) answers
2561024409616384g(x) answers
512125025924802what is the inverse of the function y=5x+30?
Answers
The inverse of the function is y = ( 1/5 )x - 6.
An expression, rule, or law in mathematics that establishes the relationship between an independent variable and a dependent variable. In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.
Consider the function,
y = 5x + 30
To find the inverse of the function we interchange x and y then find the equation for y.
Therefore, after interchanging x and y:
x = 5y + 30
Subtracting 30 from each side of the equation.
x - 30 = 5y + 30 - 30
x - 30 = 5y
Now, dividing the whole equation by 5
( x - 30 ) / 5 = 5y / 5
y = ( 1/5 )x - 30/ 5
y = ( 1/5 )x - 6
Therefore, the inverse of the function y = 5x + 30 is y = ( 1/5 )x - 6.
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