Answer:
n = -5
Step-by-step explanation:
-2(-7n-8)=-39+3n
Distribute
14n +16 = -39 +3n
Subtract 3n from each side
14n -3n +16 = -39 +3n -3n
11n +16 = -39
Subtract 16 from each side
11n +16 -16 = -39 -16
11n = -55
divide by 11
11n /11 = -55/11
n = -5
For a science project, a student plants seeds of 2 different varieties of corn plants. The table displays the
heights, in inches, of each of the corn plants after 8 weeks.
variety A
46
46
47
48
49
49
50
6
48
49
variety B
48
46 45
47
46 48
49
47 48
48
blThe mean height of the corn plants of variety A is 43.8 inches. Interpret the value of the mean in the
situation.
Answer:
The average inches of the height of the corn plants of variety A is 43.8 inches
Step-by-step explanation:
In mathematics or statistics, the mean refers to the average of numbers.
The mean is estimated by dividing sum of all the numbers by the count of the numbers.
For this question, the mean height of the corn plants of variety A of 43.8 inches is obtained as follows:
Sum of all the inches = 46 + 46 + 47 + 48 + 49 + 49 + 50 + 6 + 48 + 49 = 438 inches
Count of all the inches = 10
Mean = Sum of all the inches / Count of all the inches = 43.8 inches
The interpretation of this is that the average inches of the height of the corn plants of variety A is 43.8 inches.
How to convert Decimal to Percent?
Multiply the Decimal Number by 10
Divide the Decimal Number by 10
Multiply the Decimal Number by 100
Divide the Decimal Number by 100
Answer:
multiply the decimal number by 100.
Step-by-step explanation:
What is the value of x?
Answer:
x = 16
Step-by-step explanation:
8x - 8 = 7x + 8
Angles are vertical angles so they will be equal to each other.
x = 16
What is the degree of the polynomial?
Answer:
7
Step-by-step explanation:
The highest power of the given polynomial is 7. Therefore, the degree of the given polynomial is 7.
Which function has the greatest constant of variation? A x 8 9 10 11 y 20 22.5 25 27.5 B x 1 2 3 4 y 3.2 6.4 9.6 12.8 C On coordinate plane C, a line goes through points (0, 0) and (3, 1). D On coordinate plane D, a line goes through points (0, 0) and (1, 2).
Answer:
the answer is b
Step-by-step explanation:
edge 2020
The function with the greatest constant of variation is function B, x: 1, 2, 3, 4, y: 3.2, 6.4, 9.6, 12.8.
What is the equation?
The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
The constant of variation (k) is calculated as k = Δy/Δx for two points on a line.
For Function B, k = (6.4 - 3.2)/(2 - 1) = 3.2, which is the greatest constant of variation among all the functions.
For Function A, x: 8, 9, 10, 11, y: 20, 22.5, 25, 27.5, k = (22.5 - 20)/(9 - 8) = 1.25.
For Function C, on the coordinate plane C, a line goes through points (0, 0) and (3, 1), k = (1 - 0)/(3 - 0) = 1/3.
For Function D, on the coordinate plane D, a line goes through points (0, 0) and (1, 2), k = (2 - 0)/(1 - 0) = 2.
Learn more about the equation here:
brainly.com/question/10413253
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please help with the question above????
Answer:
I think it would be A
Step-by-step explanation:
you can take the square root of x^2 to make it x and then you would have to do that to the 10 as well. from there we know that the number can be either positive or negative so that would be the answer. you dont always have to put an exact number for these questions.
Answer:
a) [tex]\pm\sqrt{10}[/tex]
Step-by-step explanation:
[tex]x^2 = 10[/tex]
[tex]\sqrt{x^2} =\sqrt{10}[/tex]
[tex]\boxed{x=\pm\sqrt{10} }[/tex]
Juan worked 3 hours and earned $32.00. Lisa was paid $17.00 for 1.5 hours of work. Which of the following statements is true?
Juan made a better rate of pay because he made more money.
Lisa said she made a better rate of pay because her rate was $11.33 an hour.
Juan said he made a better rate of pay because he was paid $10.67 an hour.
Lisa made a lower rate of pay because she made less money.
Answer:
B. Lisa said she made a better rate of pay because her rate was $11.33 an hour.
Step-by-step explanation:
Lisa said she made a better rate of pay because her rate was $11.33 an hour.
Step-by-step explanation:
pleasee help me guyss .
Answer:
24%
Step-by-step explanation:
25 - 19 = 6
25 = 100%
2.5 = 10%
1.25 = 5%
0.25 = 1%
5 = 20%
1 = 4%
6 = 24%
Hope this helps :)
Answer:
24% Decrease
Step-by-step explanation:
Start by looking at the formula for percent change.
[tex]\frac{(V^{2} -V^{1})}{V^{1} }[/tex] x 100 = ?
Plug in the numbers, V1 being 25 and V2 being 19.
[tex]\frac{19-25}{25}[/tex] x 100 = ?
19 - 25 = -6
Put -6 as the new numerator.
[tex]\frac{-6}{25}[/tex] x 100 = ?
Divide and get the decimal version of the fraction.
-0.24 x 100 = ?
Multiply and get your final answer of 24% decrease.
3(2x-4)-5(x+3)2
Which expression is the simplest form of
3
Answer:
Step-by-step explanation:
multiply the expression out keeping in mind order of operation so paranthesis first
6x-12-10(x+3)
6x-12-10x-30
combine like terms
-4x-42=0
-4x=42
x= - 21/2
What is the periodic interest on a credit card with a 15.99% APR?
O 1.333%
O 1.499%
2.665%
0 2.998%
HELPPP!! ASAP!!!
Answer:
1.333%
Step-by-step explanation:
I took the test and this was the answer<3
factor 2x^2 +1x -10
Answer:
(2x+5)(x−2)
Step-by-step explanation:
Factor 2x2+1x−10
2x2+x−10
=(2x+5)(x−2)
triple n, then multiply 7 by the result
Answer:
21n
Step-by-step explanation:
1. triple n = 3(n)
3n
3. multiply 7 = 7(3n) = 21n
The measure of an angle is 84.49. What is the measure of its complementary angle?
Complementary angles add up to 90 degrees.
The second angle would be 90 - 84.49 = 5.51
A car travels at an average sped of 50 mph.How far should the car travel in 45 minutes
Evaluate the expression when b=-3 and x=4.
b-5x
Answer:
-23
Step-by-step explanation:
b - 5x
-3 - 5(4)
-3 - 20
-23
if two lines are parallel they also perpendicular?
Answer:
no
Step-by-step explanation:
Parallel lines do not intersect. Perpendicular lines intersect at right angles. Lines cannot be both.
Answer:
No
Step-by-step explanation:
If a line is parallel it cant be perpendicular as well
There are 946 milliliters in a quart. There are 2 pints in a quart. How many milliliters are in a pint?
Answer: 473
Step-by-step explanation: 946 Divided by 2
One cup is equal To 5/10 pint. Write this fraction as a decimal
Answer:
0.5 pints
Step-by-step explanation:
5/10 = 1/2
1 divided by 2 = 0.5
Answer:
0.5
Step-by-step explanation:
Because 5/10 is also equivalent to 1/2 and either one you simplify you will get 0.5.
Which expression could be used to determine the product of -4 and 3 1/4?
0 (-4)(3)x(-4)(1/4)
• (-4)(3) +(-4)(1/4)
0 (3)(-4)•(3)(1/4)
0 (3)(-4)+(3)(1/4)
Answer:
(-4)(3)+(-4)(1/4) B. Is your answer.
Step-by-step explanation:
-4 • 3 1/4 = -13
A= 12
B= -13
C= -9
D= -45/4.
the coefficient of x in the expansion of (x+3)^3 is
Answer:
1
Step-by-step explanation:
when it's just x by itself, the coefficient is always 1. But when solving the equation, you do 3x+3*3. So not sure what you mean. When you solve it you multiply x by 3. But in that equation right now it's 1
alejandro william scored 13 goals last season. he scored 5 more goals this season than last season than last season. how many goals did he score this season
Answer:
18 goals this season.
Step-by-step explanation:
First, we must identify what the question is asking.
13 goals last season, 5 more this season.
How many this season?
Well, if he scored more this season, we know this is going to be an addition problem.
Since he scored 13 last season a 5 more this season, we must add 13 and 5.
13 + 5 = 18 :D
Answer:
18 goals this season
Step-by-step explanation:
Well we are trying to find the answer to this season.
If he scored more goals than last season (13), you will need to add.
13+5= 18
Hope this helps!
When she first purchased it, Soledad's computer had 300 GB of hard drive space. After six months, there
were only 178 GB available. Enter and solve an equation to find the amount of hard drive space that
Soledad used in the first six months. Use s as your variable.
The equation is
She has used
= 300.
GB of memory
From a bag of 5 red and 6 green marbles, a red marble is drawn and NOT 1
replaced, then a green marble is drawn. Find the probability. (Dependent
Events) *
Answer:
Step-by-step explanation:
The highest elevation in a small country occurs on
a mountain 1232 meters above sea level, while
the lowest elevation in the same country occurs at
-27 meters (below sea level). What is the difference
in elevation between the highest and lowest points?
A 1259 meters
B 46 meters
C 1205 meters
D none of these
Answer:
a
Step-by-step explanation:
PLEASE HELP I WILL MARK YOU BRAINLIEST.
Answer:
Volume= 240cm
Step-by-step explanation:
8 times 3 times 2= 48
12 times 3 times 2 =72
20 times 2 times 3=120
48+72+120= 240
Answer:
240cm3
Step-by-step explanation:
the top box is 8x3x2=48
the middle box 12x3x2=72
bottom 20x2x3=120
add all=240cm3
HELP!!!!
What values of x and y satisfy the system of equations {y=3x+2y=3x−6? Enter your answer as an ordered pair, like this: (42, 53) If your answer includes one or more fractions, use the / symbol to separate numerators and denominators. For example, if your answer is (4253,6475), enter it like this: (42/53, 64/75) If there is no solution, enter "no"; if there are infinitely many solutions, enter "inf."
Answer:
No solutions / "no"
Step-by-step explanation:
y = 3x + 2
y = 3x - 6
Since both equations are equal to y, you can set them equal to each other.
3x + 2 = 3x - 6
subtract 3x from both sides
2 = -6
This equation is not true, therefore your answer is no solutions.
what is a question without an = sign called
Solve the inequality b - 27 > 3 and write the solution in interval notation
Step-by-step explanation:
[tex]b - 27 > 3 \\ b > 3 + 27 \\ b > 30[/tex]
What are the coordinates of B and how is that the answer ?
Step-by-step explanation:
Point A = (-1, -3).
Midway of AB = (-3, 2).
Let Point B = (x, y).
Then (-1, -3) - (-3, 2) = (-3, 2) - (x, y).
=> (2, -5) = (-3-x, 2-y).
We have -3 - x = 2 and 2 - y = -5.
So x = -5 and y = 7.
Hence, point B = (-5, 7).
Charles spent a total of $15.50 for both entrance to the ice
skating rink and a snack. The snack cost $5.50. In the equation
below, t represents the cost, in dollars, to enter the skating rink.
Which process could Charles use to solve the equation for t in
exactly one step?
[ + 5.50 = 15.50
Add 5.50 to both sides of the equation.
Subtract 5.50 from both sides of the equation.
Subtract 15.50 from both sides of the equation.
Divide both sides of the equation by 5.50.
Answer:
Çok karışık ahbap anlamadım üzgünüm
Step-by-step explanation:
