Answer:
Step-by-step explanation: x = the number
8 + x/3 = -2
Multiply both sides by 3 and get
24 + x = -6
Solve for x:
x = -30
4 divided by 2/3
pls pls pls pls pls help pls pls
Answer:
4 divided by 2/3 (4 ÷ 2/3) = 6
Step-by-step explanation:
When you divide one number by another , this is the same as multiplying that one number by the reciprocal of that other number. So a/b = a × 1/b = a × b^-1.
Also a reciprocal is the same as taking something to the power of -1.
When you take the reciprocal of a fraction, just flip the numerator, and denominator.
b^-1 = 1/b.
b^-n = 1/b^n.
(a/b)^-1 = b/a
a/b^-1 = ab
Therefore 4 / (2/3) = 4 × 3/2 = 12/2 = 6.
Answer:
6
Step-by-step explanation: 4 ÷ (2 ÷3)=6
ill give brainlist if your correct
Answer:
I KNOW this is not an awnser but im doing the same things as you for summer school help me i help you?????
Step-by-step explanation:
pls also i think it is like c I dont know thou
Help me plssssssssssss.
Answer:
5
Step-by-step explanation:
Pleade help help please
Answer:
A.
Step-by-step explanation:
they both have the same interquartile range so it’s A.
Step-by-step explanation:
two classes have the same mean
2 Mr. Jackson earns $10 per hour working in an electronics store. In addition, he earns 5% commission on all of his computer sales. Last week, he worked 5 days from 9 am to 3 pm and sold $3,100 worth of computers. What was Mr. Jackson's total income for the week? 0/1
Step-by-step explanation:
$10 per hour
9am to 3 pm = 6 hours
6 hours for 5 days = 6 × 5 = 30 hours
Amount earned for 5 days = $10 × 30 = $300
5% commission on $3,100 sales =
5/100 × 3100 = $155
Total earned = $300 + $155 = $455
Answer:
$455
Step-by-step explanation:
SOMEONE HELP ASAP PLS :(
What is 5xy-x squared t + 2xy + 3x squared t
The expression 5xy - x²t + 2xy + 3x²t has a value of 7xy + 2x²t
How to evaluate the expression?From the question, the expression is given as
5xy - x squared t + 2xy + 3x squared t
Rewrite the above expression properly
This is represented as
5xy - x²t + 2xy + 3x²t
Next, we collect the like terms in the above expression
So, we have the following equation
5xy - x²t + 2xy + 3x²t = 5xy + 2xy - x²t + 3x²t
Evaluate the like terms in the above expression
So, we have the following equation
5xy - x²t + 2xy + 3x²t = 7xy + 2x²t
The equation cannot be further simplified
Hence, the value of 5xy - x²t + 2xy + 3x²t is 7xy + 2x²t
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−0.125x + 7 = 16
Solve for x
Show work
Answer:
-72
Step-by-step explanation:
-0.125x=16-7
-0.125x=
x=-72
Answer:
x = -72
Step-by-step explanation:
Given equation,
→ -0.125x + 7 = 16
Now we have to,
→ Find the required value of x.
Then the value of x will be,
→ -0.125x + 7 = 16
Subtract RHS with the number 7:
→ -0.125x = 16 - 7
→ -0.125x = 9
Divide RHS with the number -0.125:
→ x = 9 ÷ (-0.125)
→ [ x = -72 ]
Hence, the value of x is -72.
Each equation in a system of linear equations has the same slope. What are the possible solutions the system could have?
A.
The system could have no solution or infinitely many solutions.
B.
The system could have one solution or no solution.
C.
The system could have one solution.
D.
The system could have one solution or infinitely many solutions.
Answer:
A. The system could have no solution or infinitely many solutions.
Step-by-step explanation:
Parallel lines have the same slope, meaning that they cannot intersect. So, the system can either have no solution (no intersection), or infinite possible solutions (the same line).
What is the volume of this triangular pyramid?
Answer: 540 ft³
Step-by-step explanation:
The volume of pyramids is \(\frac{1}{3} Bh\), where:
B = area of base = \(\frac{15*18}{2} =\frac{270}{2} =135ft\) h = height = 12ftTherefore, the volume = \(\frac{1}{3} (135)(12)=\frac{1}{3}(1620)=\frac{1620}{3} =540\)
Anna's salary is four times Emily's salary. They decide to share the cost of a $120 gift card. Anna will contribute four times as much as Emily. How much does each contribute
Answer:
Emily will contribute $24 and Anna will contribute $96
Step-by-step explanation:
From the given information:
Let Emily's salary be x
and let Anna's salary be 4x since Anna's salary is four times Emily's salary.
They were to share the cost of a $120 gift card.
SO, x+4x = 120
5x = 120
x = 120/5
x = 24
Therefore, Emily will contribute x = $24
and Anna will contribute 4x = 4 × $24 = $96
Will give
BRAINLY AND FIVE STARS and A THANKS
Answer:
k = 12h
Step-by-step explanation:
Since each of the inputs of h can be mutiplied by 12 to get the output k, the equation is k = 12h
Hope this helps :)
Paul scored 20 points more than 2 of what Oscar scored. Paul scored 58 points. Which equation represents the situation to find how many points Oscar scored?
Let's assume that Oscar scored x points. According to the problem, Paul scored 20 points more than twice the number of points Oscar scored. We can write this information as:
Paul's score = 58
Paul's score = 2 * Oscar's score + 20
We can substitute 58 for Paul's score in the second equation and simplify:
58 = 2x + 20
Subtracting 20 from both sides, we get:
38 = 2x
Dividing both sides by 2, we get:
x = 19
Therefore, Oscar scored 19 points. The equation that represents the situation to find how many points Oscar scored is:
2x + 20 = 58
where x is the number of points Oscar scored.
What is math? (Please do not tell me what it is used for, here. You should respond by telling me what it is.)
Do you believe math is real? Why or why not?
Create a mathematical computation about speed, distance, and time that describes how the atoms in the picture below can be explained.
Sentence Starter: This picture shows that ______________________________________.
(Remember, binary coding, matrices, statistics, graphing, are all a type of math. Answering this question requires you to be very meticulus about your description.....)
PLS HELP I HAVE TO DO GYM OR I WILL GET A BAD GRADE HELP I NEED THIS DONE
Answer:
1. Yes, 34+12=46
2.No, 22-9=13
3. Yes, 6*9=54
4. Yes, 39/3=13
5. k=4 7+4=11
6. p=37 37+24=13
7. h=23 23+16=7
8. m=13/30 2/5+13/30=5/6
9. w+15=190 w=175
i hope this helps:)
Consider the equation 3a+0.1n=123. If we solve this equation for n, which equation would result? A. 0.1n=123-3a B. N=123-3a-0.1 C.N=1,230-30a D. 3a-123 over 0.1 =n
Answer:
n = (123 - 3a) / 0.1
Step-by-step explanation:
Given:
3a + 0.1n = 123
Solve for n
3a + 0.1n = 123
Subtract 3a from both sides
3a + 0.1n - 3a = 123 - 3a
0.1n = 123 - 3a
Divide both sides by 0.1
n = (123 - 3a) / 0.1
The resulting equation if 3a + 0.1n = 123 is solved for n is n = (123 - 3a) / 0.1
5.
6.
7.
6.
7.
8.
Name the vertex of the angles.
Name a point in the interior of ZLMO.
Name the sides of 21.
ZABC is a right angle. Find the value of 'x'.
What type of angle pair are 23 and 24?
Find the m/1.
(4x+4) 2
Use for questions
5-7.
(2x+20)
(8x-8)
1) The vertice of all the angles is given as Point M.
2) A point in the interior of ∠LMO is point P.
3) The sides of ∠1 are: MO and MN.
4) The value of x in Right ∠ABC is 35°
2x + 20 = 90
2x = 70
x = 35°
5) Note that ∠3 and ∠4 are angle pairs called Adjacent lines. In this case, both angles sum up to 180°
6) m∠1 is 16°
How was m∠1 derived?To deriver m∠1 both angles must be equated to one another based on the theorem of the congruency of Adjacent Angles.
Thus,
4x + 4 = 8x -8 (Collect like terms over the equals sign)
4+8 = 8x -4x
12 = 4x (divide both sides by 4 to get x)
x = 12/4
x = 3
thus m ∠1 =
⇒ 4 (3) + 4
⇒ 12 + 4
= 16°
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A shop foreman found that it takes 40 minutes on average to complete a
specific task. Given that the standard deviation for this task is 6 minutes
and the times for completing this task are normally distributed, what is
the probability that on any given day it will take between 34 and 44
minutes to complete the task?
Using the normal distribution, it is found that there is a 0.5899 = 58.99% probability that on any given day it will take between 34 and 44 minutes to complete the task.
In a normal distribution with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.In this problem:
Mean of 40 minutes, hence \(\mu = 40\).Standard deviation of 6 minutes, hence \(\sigma = 6\).The probability that on any given day it will take between 34 and 44 minutes to complete the task is the p-value of Z when X = 44 subtracted by the p-value of Z when X = 34, hence:
X = 44:
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{44 - 40}{6}\)
\(Z = 0.67\)
\(Z = 0.67\) has a p-value of 0.7486
X = 34:
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{34 - 40}{6}\)
\(Z = -1\)
\(Z = -1\) has a p-value of 0.1587
0.7486 - 0.1587 = 0.5899.
0.5899 = 58.99% probability that on any given day it will take between 34 and 44 minutes to complete the task.
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(1 point) college officials want to estimate the percentage of students who carry a gun, knife, or other such weapon. how many randomly selected student
Probability Theory
P (K) =\(\frac{n (K) }{n (S)}\)
P(K) : probability of selected K
n (K) : number of occurence of K
n (S) : number of all occurence
In question is not contain information about the number of students who curry a gun, knife, or other weapon and the number of all students. so, we can desribe that :
n (A) : the number of occurence of students who curry a gun
n (B) : the number of occurence of students who curry a knife
n (C) : the number of occurence of students who curry other weapon
and the number of all students is n ( A U B U C) -> union of sets
how many randomly selected student? in question, there is no specific about the student. so, we can answer with :
1) probability of students who curry a gun
P (A) = \(\frac{n (A) }{n (AUBUC)}\)
2) probability of students who curry a knife
P (B) = \(\frac{n (B) }{n (AUBUC)}\)
3) probability of students who curry other weapon
P (C) = \(\frac{n (C) }{n (AUBUC)}\)
and if question want to estimate with percentage, we can multiply with 100%. example :
1) percentage of probability of students who curry a gun
P (A) = \(\frac{n (A) }{n (AUBUC)}\) x 100%
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How many equations are in a 3x3 systems of equations?
There are 3 equations required to solve a 3x3 sysytem of equation.
We can eliminate z by multiplying the third equation by 2 and adding to the first:
2x - 10y - 4z = -8
2x + 3y + 4z = 2
Adding,
4x - 7y = -6
Let's eliminate z from the second by multiplying it by 2, the third by 3, and adding.
10x - 4y + 6z = 0
3x - 15y - 6z = -12
13 x - 19 y = -12
Ok, we eliminate y by muliplying our first x,y equation by 19, the last by 7, and subtracting
4(19)x - 7(19)y = -6(19
13(7)x - 19(7)y = -12(7)
(4(19) - 13(7)) x = -6(19)+12(7)
x = ( -6(19)+12(7)) / (4(19) - 13(7)) = 2
That worked out.
7y = 4x + 6 = 4(2) + 6 = 14
y = 2
4z = 2 - 2x - 3y = 2 - 2(2) - 3(2) = 2 - 4 - 6 = -8
z = -2
x=2, y=2, z=-2
There are 3 equations required to solve a 3x3 sysytem of equation.
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Disclaimer
The question given by you is incomplete, the above anser is done as per the question
How to do 3x3 systems of equations
Carlisle Transport had $4,520 cash at the beginning of the period. During the period, the firm collected $1,654 in receivables, paid $1,961 to supplier, had credit sales of $6,916, and incurred cash expenses of $500. What was the cash balance at the end of the period?
To calculate the cash balance at the end of the period, we need to consider the cash inflows and outflows.
Starting cash balance: $4,520
Cash inflows: $1,654 (receivables collected)
Cash outflows: $1,961 (payments to suppliers) + $500 (cash expenses)
Total cash inflows: $1,654
Total cash outflows: $1,961 + $500 = $2,461
To calculate the cash balance at the end of the period, we subtract the total cash outflows from the starting cash balance and add the total cash inflows:
Cash balance at the end of the period = Starting cash balance + Total cash inflows - Total cash outflows
Cash balance at the end of the period = $4,520 + $1,654 - $2,461
Cash balance at the end of the period = $4,520 - $807
Cash balance at the end of the period = $3,713
Therefore, the cash balance at the end of the period is $3,713.
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along how many different directions do you need to measure strain during testing in order to determine poisson's ratio?
To determine Poisson's ratio, you need to measure strain along two different directions during testing.Poisson's ratio (ν) is a material property that describes the relationship between the lateral strain and the axial strain in a material when it is subjected to uniaxial stress.
Here's an explanation including the key terms:
Poisson's ratio (ν) is a material property that describes the relationship between the lateral strain and the axial strain in a material when it is subjected to uniaxial stress. In simpler terms, it tells you how much a material will deform in one direction when it is stretched or compressed in another direction.
To calculate Poisson's ratio, you need to measure strain along two different directions. The first direction is the axial direction, which is parallel to the applied force. This is known as axial strain (εa). The second direction is perpendicular to the axial direction, and this is called lateral strain (εl).
Poisson's ratio is calculated using the following formula:
ν = - (εl / εa)
To determine Poisson's ratio during testing, follow these steps:
Apply a uniaxial stress to the material, either through compression or tension.
Measure the axial strain (εa) along the direction of the applied force. This is typically done using a strain gauge or similar device.
Measure the lateral strain (εl) in a direction perpendicular to the applied force. This can also be done using a strain gauge.
Calculate Poisson's ratio (ν) by dividing the negative of the lateral strain (εl) by the axial strain (εa).
By measuring strain along these two directions and applying the formula, you can accurately determine the Poisson's ratio for the material being tested.
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If using the method of completing the square to solve the quadratic equation
x^2– 10x + 21 = 0, which number would have to be added to "complete the
square"?
Answer: 25
Step-by-step explanation: The number that is added to both sides is the number that is needed to create a perfect square trinomial.
The question is, what is that number?
Well, it comes from a formula. The number that is added to both sides always comes from half the coefficient of the middle term squared.
So half of -10 squared or -5 squared which is 25.
So 25 is added to both sides.
to construct a confidence interval using matched pairs, we must compute the standard deviation of the
We must calculate the standard deviation of the differences between the values in the matched pairs in order to build a confidence interval using those values.
What is the difference between standard deviation and confidence interval?The 95% confidence interval is another frequently used measure of accuracy. In order to calculate it, a range of values that is 95% likely to contain the true population mean must be created using the standard deviation.
According to the 68-95-99.7 Rule, 95% of values are within two standard deviations of the mean, so to calculate the 95% confidence interval, one need only add and deduct two standard deviations from the mean.
Data dispersion in relation to the mean is quantified by a standard deviation, or σ. Data are said to be more closely clustered around the mean when the standard deviation is low and more dispersed when the standard deviation is high.
The difference between the values in the matched pairs' standard deviation is calculated.
The complete question is:
To construct a confidence interval using matched pairs, we must compute the standard deviation of the ___ between the values in the matched pairs.
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We must calculate the standard deviation of the differences between the values in the matched pairs in order to build a confidence interval using those values.
What is the difference between standard deviation and confidence interval?
The 95% confidence interval is another frequently used measure of accuracy. In order to calculate it, a range of values that is 95% likely to contain the true population mean must be created using the standard deviation.
According to the 68-95-99.7 Rule, 95% of values are within two standard deviations of the mean, so to calculate the 95% confidence interval, one need only add and deduct two standard deviations from the mean.
Data dispersion in relation to the mean is quantified by a standard deviation, or σ. Data are said to be more closely clustered around the mean when the standard deviation is low and more dispersed when the standard deviation is high.
The difference between the values in the matched pairs' standard deviation is calculated
To construct a confidence interval using matched pairs, we must compute the standard deviation of the ___ between the values in the matched pairs.
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Due Today!!!!!!!!!!!!
Answer:
due today
Step-by-step explanation:
Answer:
Step-by-step explanation:
What's due? You didn't attach anything or put a problem down. I can't help if there is nothing shown in front of me.
The formula for the volume of a pyramid is V=⅓Bh, where B is the area of the base of the pyramid and h is the height of the pyramid.
What is the volume of this pyramid in cubic inches?
Answer:
80
Step-by-step explanation:
v=lwh/3= 5*6*8/3 = 80
The volume of this pyramid in cubic inches is 80 inch³.
What is Volume?Volume is a mathematical term used to describe how much three-dimensional space an item or closed surface occupies.
The area that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere.
We have,
V = (1/3) (b) (h)
So, the Volume of Pyramid is
= 1/3 x base aera x height
= 1/3 x 5 x 6 x 8
= 5 x 2 x 8
= 80 inch³
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Please help! Due tonight!
Answer:
x = square root of 119
Step-by-step explanation:
Because it is only a little bigger than the side it opposes
Hank spins the spinner shown in the diagram 30 times. His results are as follows:
Yellow: 4
Blue: 7
Red: 5
Green: 6
Orange: 3
Purple: 5
What is the theoretical probability of landing on yellow?
A)
1/3
B)
1/6
C)
1/8
D)
2/15
kid had 10 apples and he gic
Answer:
The meal cost $14.51 per person.
Step by step explanation:
Meal cost: 46.72
Sales tax: 8%
Then.
then we take out 8% of the value
\(46.72\text{ x 0.08 =3.74}\)\(46.72+3.74\text{ = 50.46}\)Tip : 15% (meal and sales tax)
\(50.46\text{ x 0.15 = 7.57}\)\(50.46\text{ + 7.57 = 58.03}\)There are 4 people.
\(\frac{58.03}{4}=14.51\)Use a ratio to solve the problems.
Special
2 for $4.98
1. a) How much will 4 pints of ice
cream cost?
b) How much will 3 pints of ice
cream cost?
Answer:
Part A) $9.96
Part B) $7.47
Step-by-step explanation:
Given:
If 2 Ice cream = $4.98
Step:
Then Let's find how much is 1 Ice cream.
To find the cost of 1 Ice cream divide the $4.98 by 2
which gives you 2.49
Now:
Part A) How much will 4 pints of ice cream cost?
2.49 x 4 = $9.96
Hence, 4 pints of ice cream cost → $9.96
Part B) How much will 3 pints of ice cream cost?
2.49 x 3 = $7.47
Hence, 3 pints of ice cream cost → $7.47
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