Answer:
The new mean will be 20.
Step-by-step explanation:
The Mean Value of a Data Set
The mean or average of a data set is found by adding all numbers and then dividing by the number of values in the set. Written as a formula:
[tex]\displaystyle \bar x=\frac{\sum x_i}{n}[/tex]
Where xi is the value of each data and n is the total number of values.
The mean of n=30 numbers is [tex]\bar x=18[/tex]. If each observation is increased by 2, then xi'=xi+2 and the new mean value will be:
[tex]\displaystyle \bar x'=\frac{\sum x'_i}{30}[/tex]
[tex]\displaystyle \bar x'=\frac{\sum x_i+2}{30}[/tex]
[tex]\displaystyle \bar x'=\frac{\sum x_i}{30}+\frac{\sum 2}{30}[/tex]
The sum of 30 times 2 is 60, thus:
[tex]\displaystyle \bar x'=18+\frac{60}{30}=18+2=20[/tex]
The new mean will be 20.
every 2 weeks i get paid starting september 23 when is my next pay day
Answer: October 7
Step-by-step explanation:
PLs help I can't stay too long my assignment is due in 20 min!
Divide. Write the quotient in lowest terms.
3/5 divided by 2 and 1/2
Answer:
Decimal: 0.24
Fraction: 6/25
The tiger population was about 350 in 1975. Today that has decreased by about 35%. About how many tigers are there today?
Answer: $228
Step-by-step explanation:
PLZ HELP QUICKLY WORTH 35 POINTS NOT KIDDING AND WILL MARK BRANLIEST
A pair of equations is shown below:
y = 3x − 5
y = 6x − 8
Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution. (5 points)
Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer. (5 points)
Answer:
Part A: You can solve this by elimination by first multiplying the first equation by -1 and then adding. This will cause the y value to cancel out.
-y = -3x + 5
y = 6x - 8
---------------
0 = 3x - 3
3 = 3x
1 = x
Now since we know that x = 1, we can plug it into either equation to find y.
y = 3x - 5
y = 3(1) - 5
y = 3 - 5
y = -2.
This gives us the ordered pair of (1,-2).
Step-by-step explanation:
Part B: If we graphed these two, they would intersect at (1, -2). This is because when you solve a system using any method, the result is the intersection of the lines. Therefore, you found where they would intersect in Part A.
Answer: im a cat boi, meow^^
Step-by-step explanation:
A 5-pound bag at Bargain Mart costs $6.45. A 2-pound bag at Food Saver costs $2.50. A 7-pound bag at Grocery Surplus costs $9.45 A 10-pound bag at Economart costs $12.89. The shop with which sells flour for the lowest unit price is
Answer: Food Saver
Step-by-step explanation:
A 5-pound bag at Bargain Mart costs $6.45. The coat per pound will be:
= $6.45 / 5
= $1.29
A 2-pound bag at Food Saver costs $2.50. The cost per pound will be:
= $2.50 / 2
= $1.25
A 7-pound bag at Grocery Surplus costs $9.45. The cost per pound will be:
= $9.45 / 7
= $1.35
A 10-pound bag at Economart costs $12.89. The cost per pound will be:
= $12.89 / 10
= $1.289
Therefore, the shop which sells flour for the lowest unit price is Food Saver.
I need help with my work
Answer:
number 6 is -8 number 7 is 9 number 8 is 25 and number 9 is -16
What is the quotient
Answer:
-3
Step-by-step explanation:
if u need an explanation, reply and i'll give it to you. If not, have a good day :)
5. Terry descends 110 feet in 10 minutes inside a cave. What is Terry's change
in position before descending?
Answer:
The correct option would be D: -110 feet / 10 minutes
6g + 3 = 21 ???? plz help lol
Answer:
3
Step-by-step explanation:
Answer:
g=3
Step-by-step explanation:
6g + 3 = 21
6g=18
divide by 6
g=3
Hope this helps!!
MATH AGAIN HELP PLS!!!!!!!!!!!!!!!!!!!!!!!!!!
2 and 9 multiples of 2??
Is 2 and 9 multiples of 2?
2 is a multiple of 2 but 9 isn't
Thomas and Grace earned a total of $48 shoveling snow. If Thomas earned three times as much as Grace, how much did Thomas earn? Write an equation and solve
Music us enjoy to --- and said aaaa
Which one of these deals is the lowest price per ounce?
a) 5 ounces for $2.52
b) 7 ounces for $3.48
c) 8 ounces for $3.92
A is the answer j trust me
33)
Which sequence is arithmetic?
6)
A)
1,3,9,27
1,4,16,64,
C)1,4,9,16,
D)3,7.11.15
Answer:
Ima assume D
Step-by-step explanation:
because it is increasing at an constant amount which is by 4
The endpoints of ab are a (-8,5) and b ( 0,7). find the coordinates of the midpoint M. The coordinates of the midpoint M are
Answer:
947
Step-by-step explanation:
What is the equation of the quadratic function represented by this table?
x 5 6 7 8 9 10
f(x) -4 5 8 5 -4 -19
Type the correct answer in each box. Use numerals instead of words. f(x) = (x − )2 +
Answer: f(x) = -3(x-7)^2+8
Step-by-step explanation:
-3, 7, 8
f(x)= -3
(x- 7)^2+
8
So the answer is -3, 7, 8
Step-by-step explanation: Got it right on Edmentum
Help me solve asap!!
Answer:
2/16
Step-by-step explanation:
The answer is 2/16
brainliest?
Find f(x)=-8x+5 and g(x)=6x+8.
f(4)+g(2)
Pleas help. Please and thank :)
Answer:
126
Step-by-step explanation:
42/2= 21
21 times 6 = 126
answer is 126 pages
plez give brainliest
if ∠n and ∠p are supplementary angles, m∠N=(x+3)° and m∠P=(7x-15)° ,find m∠P.
Answer:
132 degrees
Step-by-step explanation:
x+ 3+7x-15=180
8x -12 =180
8x = 168
x=21
7(21) -15
147-15
132
3.5w + 4.2w + 1.5 + 9.6w - 8.8w
Answer:
8.5w + 1.5
Step-by-step explanation:
Combine like terms: 3.5w + 4.2w + 9.6w - 8.8w = 8.5wRe-write expression: 8.5w + 1.5I hope this helps!
Answer:5-(17w+3)
—————————-
10
Step-by-step explanation: 1): "8.8" was replaced by "(88/10)". 5 more similar replacement(s)
STEP
1
:
44
Simplify ——
5
Equation at the end of step
1
:
35 42 15 96 44
((((——•w)+(——•w))+——)+(——•w))-(——•w)
10 10 10 10 5
STEP
2
:
48
Simplify ——
5
Equation at the end of step
2
:
35 42 15 48 44w
((((——•w)+(——•w))+——)+(——•w))-———
10 10 10 5 5
STEP
3
:
3
Simplify —
2
If Lauren reads for 30 minutes in 6 minutes in a 240 page novel,what is the constant of proportionally
Answer:
The Constant of Proportionality is 5 pages per minute.
Step-by-step explanation:
P.S Can I have brainliest?
Answer:
Lauren reads 5 pages per minute.
Step-by-step explanation:
Just divide 30 by 6 to get your answer
please help me, i’m struggling so bad, il mark you brainliest if you give me the answer
Answer:
210 squared inches, I think
Step-by-step explanation:
21 x 15 = 315 (area of original map)
315 x 2/3 = 210
What is the simplified expression of the following expression?
7
OA.
37 x 7
64 x 7
314
611
OB
OC.
37 + 7
64 + 7
OD
349
628
Reset
Submit
Answer:
2401
Step-by-step explanation:
its really long so i wont right it down
The same business recently upgraded a display TV they had in their lobby.
Originally the TV was 32 inches (across the diagonal) and had an area of
446.38in? The new TV is 53 inches across the diagonal. What is the area of the
new TV? Round the answer to two decimal places.
Answer: 739.32in
Step-by-step explanation:
Since we are informed that originally the TV was 32 inches (across the diagonal) and had an area of
446.38in while thee new TV is 53 inches across the diagonal.
The area of the new TV would simply be calculated as:
= (53 × 446.38) /32
= 23658.14 / 32
= 739.32in
How many solutions are there to this equation? 5x + 2-2(x - 1) = 3x + 4*
Ono solution
O exactly one solution
O at least two solutions
Oinfinitely many solutions
The equation 5x ₊ 2 ₋ 2(x₋1) = 3x ₊ 4 has infinitely many solutions. Examining our findings will allow us to determine which case it is. There are endless solutions if we end up with the identical term on both sides of the equal sign, such as 3 = 3 or 2x = 2x. There are no solutions if we end up with different integers on either side of the equal sign, as in 6 = 5.
Given the equation is 5x ₊ 2 ₋ 2(x₋1) = 3x ₊ 4
First apply the multiplicative distribution law.
5x ₊ 2 ₋ 2x ₊ 2 = 3x ₊ 4
now rearrange the unknown terms to the left side of the equation:
5x ₋ 2x ₋ 3x = 4 ₋ 2 ₋ 2
combine like terms.
0 = 4 ₋ 2 ₋ 2
0 = 0
we get the similar value on both sides of the equal sign, which indicates that the equation has infinitely many solutions.
hence the equation has infinitely many solutions.
Learn more about Linear equations here:
brainly.com/question/4074386
#SPJ9
can you help pls i rlly need help
Answer:
200+50x = first month
50x (x represents number of months)
First month is 200+5=$250
Step-by-step explanation:
What is the value of 24 - (-6 - (5 + 8))?
Answer:
43
Step-by-step explanation:
Simply follow PEMDAS.
24 - (-6 - (5 + 8))
24 - (-6 - 13)
24 - (-19)
24 + 19
= 43
subtract 4/5-1/5 i will give yall 87 points if yall answer
Answer:
[tex]\frac{3}{5}[/tex]
Step-by-step explanation:
[tex]\frac{4}{5}[/tex] - [tex]\frac{1}{5}[/tex] = [tex]\frac{3}{5}[/tex]
When the denominator of both fractions are the same, you can just calculate the numerators while leaving the denominator alone. In this case, 4-1=3 and the denominator is 5.
Answer:
3/5
Step-by-step explanation:
denominators must be the same. Then subtract how you would subtract positive numbers and keep the denominator the same
4 - 1 = 3
3/5
toni can carry up to 15 lbs in her backpack. her lunch weights 1 lb, her gym clothes weight 2 lb, and her books (b) weight 3 lb each. How many books can she carry in her backpack?
Answer:
4 books
Step-by-step explanation:
15-3=12
12/3=4