Answer:
n = 2/3
Step-by-step explanation:
3n - 22 = -20
Add 22 to both sides
-20 + 22 = 2
3n = 2
Divide both sides by 3
2 / 3 = 2/3
n = 2/3
Let me know if I've done something wrong :)
Answer:
[tex]n = \frac{2}{3}[/tex]
Step-by-step explanation:
Add 22 to each side, so it now looks like this: 3n = 2Divide each side by 3 to cancel out the 3 next to n. It should now look like this: [tex]n = \frac{2}{3}[/tex]I hope this helps!
explain the slope rules
I need them for my notes.
many thanks <3
Answer:
Rules for Calculating the Slope of Line
Find two points on the line. Count the rise (How many units do you count up or down to get from one point to the next?) Record this number as your numerator. Count the run (How many units do you count left or right to get to the point?)
Step-by-step explanation:
TIME REMAINING
59:55
Which inequality has –12 in its solution set?
A
B
C
D
x + 6 less-than negative 8
x + 4 greater-than-or-equal-to negative 6
x minus 3 greater-than negative 10
x + 5 less-than-or-equal-to negative 4
A
B
C
D
Answer:
what is a b c or d what are the answers for multi chose
Step-by-step explanation:
is −8>6 true or false
What is 9% of 31? Do not round, write the exact amount
Answer:
2.79
Step-by-step explanation:
Help please in the photo
Answer:
m = 40
Step-by-step explanation:
The triangle inside the circle has 2 equal sides ( the radii ) of the circle, thus
The base angles are congruent both 50°
The 3 angles on the tangent sum to 180°, so
m + 50 + 90 = 180
m + 140 = 180 ( subtract 140 from both sides )
m = 40
Can somebody help me please I needed this for the longest (3x+2) and (x-7)
Answer:
They intercept at (-4.5, -11.5)
Step-by-step explanation:
While only 5% of babies have learned to walk but the adage of 10 months, 75% have learned to walk by 13 months of age. If the age at which Bavaria develop the ability to walk can be described by normal distribution model, find the mean and standard deviation of the normal model
Answer:
Mean is 12.13 months
Standard deviation is 1.29
Step-by-step explanation:
We need to use z-score here
Let the mean of the distribution be a while the standard deviation be b
Mathematically;
z-score = (x-mean)/SD
We can obtain the probability from the z-score
Now, for the 10th month
The z-score for a probability of P = 0.05(5%)
Can be obtained from the standard normal distribution table and that is;
-1.645
Hence;
-1.645 = (10 - a)/b
-1.645 b = 10 - a
a = 10 + 1.645b ••••••(i)
For the 13 month, we have a proportion of 75%
The z-score corresponding to P(0.75) is = 0.674 from standard normal distribution table
Hence;
0.674 = (13-a)/b
0.674b = 13 - a
a = 13 - 0.674b. •••••(ii)
Now equate both a;
10 + 1.645b = 13 - 0.674b
13-10 = 1.645 b+ 0.674b
3 = 2.319b
b = 3/2.319
b = 1.294
So the mean a will be
10 + 1.645b = 10 + 1.645(1.294) = 10 + 2.13
So mean is 12.13
Please answer this question
Answer:
A
Step-by-step explanation:
Its A!!!
Since it says the scale is 100 km for each cm, and the cities are 2.9 cm away on the map you just multiply that by 100 to get 29 km! Hope this helps!
Solve the following compound inequality
-3 < x +7 <10
Answer:
x > -10
x < 3
Step-by-step explanation:
separate into two inequalities
x+7> -3
x+7<10
x + 7 -7> -3 + -7
x > - 10
x + 7 -7 < 10 + -7
x < 3
Find the range of the function
Answer:
It would be A
Step-by-step explanation:
How do solve 31 = 5 - 2(3x+4) - x. It can be a fraction.
Kinsley's age is 7 years less than twice Jacob's age. If Kinsley is 13 years old, how old is Jacob? Choose the answer below that is a viable solution to this problem.
NEEED HELP PLZZ :(
A 5
B 10
C 1
D 2
Answer:
10x2= 20 -7 =13 :answer is 10.
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Kinsey is 7 years less than twice Jacob's age. Let's call Jacob's age x. IF we call Jacob's age x, our equation can be 2x-7 = 13
2x - 7 = 13
2x = 20
x=10
Jacob is 10 years old.
yo this is for a diagnostic grade can someone help
Answer:
35 students
Step-by-step explanation:
The ratio of boys to girls is 3:4
4*x= 20
x= 5
now multiply 5 for the boys
3*5= 15
now add both sums together
20+15 = 35
Done!
Hope this helps! ; )
Solve the given system using matrices.
x + 3y + 2z = 4
-4x - 2y + 5z = 3
2x + 2y + z = 7
x=
y=
z=
Enter answers with no spaces.
I RLLYYYY NEED HELP YALL
Answer:
X = 64/19
y equals -2/19
z =9/19
Step-by-step explanation:
its very hard to type in the explanation but I know the answer is right trust me I do a level maths
If a = b and b = c, which statement must be true?
Answer:
a=c
Step-by-step explanation:
This is because of the transitive property; which states that if a=b and b=c, then a=c.
The graph of a quadratic function, y=x?. is reflected over the x-axis. Which of the following is the equation of the
transformed graph?
Answer:
x = -y
or
-y = x
Step-by-step explanation:
since you reflect it over the x axis, the y changes to a negative
Answer:
its A on edgy
Step-by-step explanation:
2 2/3 divided by 1 1/3
Answer:
2
Step-by-step explanation:
Answer:
It is 2
Step-by-step explanation:
I do not have a true explanation its just quick math to my brain.
One positive number exceeds another by 7, and their product is 78. Find the numbers.
Answer:
13 and 6
Step-by-step explanation:
13 • 6 = 7813 – 6 = 7When a fraction is reduced to lowest terms, the only factor the numerator and denominator have in common is _____.
10
1
0
5
Michelle wants to borrow $4,500. Bank A will lend Michelle the money at a simple annual interest rate of 9% for 6 years. Bank B will lend her the money at 11% for 4 years. Which bank would charge Michelle the least amount of interest? Explain.
Answer:
Michelle needs to calculate the interest for the length of each loan. Bank A will charge $2430 in interest and Bank B will charge $1980 in interest. She will save by borrowing from Bank B.
Step-by-step explanation:
this is the simple reponse
Sam ordered some books online for $5 each. He paid a total of $4 for shipping. The total cost of the purchase was $89. How many books did he buy?
Part a is the equation and part b is the total
Answer:
17
Step-by-step explanation:
if you subtract 4 from 89, which is the shipping cost. 89 - 4 = 85. Then divided 85 by 5 because that will show how much he paid for them in total, by how much a singular book is. Telling you how many books he bought. 85/5 = 17.
Answer:
A.) 5b+4=89
B.) 17 books
Step-by-step explanation:
To find A.), we must create a linear equation. Let b be the number of books Sam ordered. We write 5b because each book is 5 dollars. Then we add 4 dollars to the equation to represent the shipping fee. Then we write "equals to 89", because it says that is the total cost. So we get the equation 5b+$4=$89
To find B.), we must solve the equation. Isolate the variable, by subtracting 4 from both sides. We then get 5b=$85. Now we divide by 5 to get only the variable and to get rid of the coefficient. We get b=17. So Sam bought 17 books.
Pls I really need help
Answer:
Greater
Step-by-step explanation:
The side with intermediate length is:
1. OD
2. DE
3 EO
Answer:
I don't know exactly, I think it is EO, but I could be wrong.
Step-by-step explanation:
The side with intermediate length is OE .
What is the relationship between length of side of triangle and their interior angle ?Relationship of sides to interior angles in a triangle
In any triangle:
The shortest side is always opposite the smallest interior angleThe longest side is always opposite the largest interior angleAccording to the question
Side opposite to smallest ∠20° = OD
Side opposite to largest ∠110° = DE
Side opposite to intermediate ∠50° = OE
Now,
according to the relationship between length of side of triangle and their interior angle
The smallest side is opposite the smallest angle, and the longest is opposite the largest angle, then it follows that since a triangle only has three sides, the midsize side is opposite the midsize angle.
Therefore,
OD = smallest side
DE = Largest side
OE = intermediate side
Hence, The side with intermediate length is OE .
To know more about the relationship between length of side of triangle and their interior angle here:
https://brainly.com/question/24083446
#SPJ2
Determine the domain of the graph above
It’s due tomorrow please someone help
Answer:
15a is 32oz 18c is 10
Step-by-step explanation:
What is the equation for this line? *
O y = -2x +1
O y = 1/2x + 1
O y = -2x - 1
O y = -1/2x + 1
Answer:
y = -2x + 1
Step-by-step explanation:
The y-intercept is given by the point that is on the y-axis. (1)
This means that the answer contains a +1
Then you must find if the slope is positive or negative
In this case the slope is negative because the line goes "downhill" from left to right
Since the slope is negative it means that there will be a negative sign in the beginning of the equation
Next, to find the slope you need to find the rise over run
Since it is a negative slope the rise will be negative and the run will be positive.
To find the slope find two clear points on the graph such as (0,1) and (2,0)
To find the slope, use the slope formula
This would look like: (0-2)/(1-0)
Your slope will be -2x
Piece it all together and you get a final answer of y= -2x+1
How many solutions does the following equation have ?
–42 – 7 + 10x = -7 + 62
what are the images of F and H
what? there are no images, i have no idea what you are saying
Bianca bought a skateboard for $75. There sales tax of 6.5%. What well she spent total for the skateboard?
Answer:
79.875, or 79.88
Step-by-step explanation:
first ya do 75*0.065=4.875
then you add that to 75
what is the answer?
Answer:
i think it is 8
Step-by-step explanation:
but i am not sure