Answers
Answer:
a) 1.8
b) 11.8
c) 23.6
a)(2.4 + 1.6 + 3.2 + 0.3 + 1.5) / 5 = 1.8
b)(12.4 + 11.6 + 13.2 + 10.3 + 11.5) = 11.8
c)(24.8 + 23.2 + 26.4 + 20.6 + 23) / 5 = 23.6
or,
11.8 × 2 = 23.6
Answer+Step-by-step explanation:
a)
original mean = (2.4+1.6+3.2+0.3+1.5)÷5
= 9÷5
= 1.8
b)
New mean = ((2.4+10)+(1.6+10)+(3.2+10)+(0.3+10)+(1.5+10))÷5
= (12.4) + (11.6) + (13.2) + (10.3) + (11.5)) ÷ 5
= 59÷5
= 11.8
Note:
11.8-10 = 1.8
then
New mean = original mean + 10
c)
Newest mean = ((2×12.4)+(2×11.6)+(2×13.2)+(2×10.3)+(2×11.5))÷5
= ((24.8)+(23.2)+(26.4)+(20.6)+(23))÷5
= 118÷5
=23.6
Note :
Newest mean = 2×(New mean)
= 2×(original mean + 10)
Related Questions
please help! also please explain how to solve
Answers
Answer:
C
Step-by-step explanation:
The fast way: Testing the options!
Teacher loving way:
An= d×n + A0
d= A4-A3=A5-A4=A6-A5...= 6
A3= 0 = 6×3 + A0
A0= -18
Then the equation is: An= 6n - 18
HELP DUE AT 11:59!!!
Answers
Answer:
8x-9
Step-by-step explanation:
You have to combine like terms in order to simplify this problem.
The like terms you have are 5x, and 3x. If you add 5x+3x, you get 8x.
Now, you do nothing with the 9 because there is nothing to combine it with. For example, if your problem was 5x+3x-9+10, you combine 5x and 3x to get 8x, but now with the 9, you keep the subtraction symbol so it is 10-9, (think of it as -9), and when you finish that, you get 1. Now there are no more symbols so you add, 8x+1.
Answer:
8×-9
Step-by-step explanation:
You have to combine like terms in order to simplify this problem.
The like terms you have are 5x, and 3x. If you add 5x+3x, you get 8x.
Now, you do nothing with the 9 because there is nothing to combine it with. For example, if your problem was 5x+3x-9+10, you combine 5x and 3x to get 8x, but now with the 9, you keep the subtraction symbol so it is 10-9, (think of it as -9), and when you finish that, you get 1. Now there are no more symbols so you add, 8x+1.
HOPE IT HELPS.
PLEASE MARK ME AS BRAINLIEST.
Find the value of x.
390
107°
to
Answers
Answ.er:
x=146°
Step-by-step explanation:
the Exterior angle theorem states the exterior angle is equal to the sum of angle 1 and angle 2.
So add 107 and 39 to get 146.
11, 15, 19,... Find the 46th term.
WILL GET BRAINLIEST!!!!!!!!
Answers
Answer:
191
Step-by-step explanation:
the rule is +4 so 11+45*4=191 (45 is the number not including the first one)
191 is the answer
Answer:
191
Step-by-step explanation:
First, determine if the sequence is arithmetic or geometric.
If it is arithmetic, the difference between consecutive terms is constant.
If it is geometric, the ratio between consecutive terms is constant.
[tex]\sf 11 \underset{+4}{\longrightarrow} 15 \underset{+4}{\longrightarrow} 19[/tex]
As we add 4 to each term to get the next term, this is an arithmetic sequence with common difference of 4.
Arithmetic sequence
General form of an arithmetic sequence: [tex]a_n=a+(n-1)d[/tex]
where:
[tex]a_n[/tex] is the nth terma is the first termd is the common difference between termsGiven:
a = 11d = 4Substituting the given values into the formula to find an equation for the nth term:
[tex]\implies a_n=11+(n-1)4[/tex]
[tex]\implies a_n=4n+7[/tex]
Therefore, to find the 46th term, substitute n = 46 into the equation:
[tex]\implies a_{46}=4(46)+7=191[/tex]
In the wholesale store you have to pay 1500 EUR for 120 identical tea boxes. How many such tea boxes can be purchased for 900 Eur?
Answers
1500/120=12.5
Each box cost 12.5EUR
900/12.5=72
So you can buy 72 boxes.
2/3 to the power of -3
Answers
Answer:
The answer is 54.
If the simple interest on $7000 for 10 years is $6300, then what is the interest rate?
Answers
hope this helps!
Based on a sample survey, a company claims tha 80% of their customers are satisfied with their products. out of 350 customers, how many would you predict to be satisfied?
Answers
Answer:
280 customers
Step-by-step explanation:
80% of 350 is 280
Quick! What is a Two-Sided Variable Equation with the Answer of 16! (EX: of a Two-Sided Variable (7x = −x+24))
Answers
Answer:
2x + 4 = 20 + x
Step-by-step explanation:
X = 16
X+4 = 20
2x + 4 = 20 + x
State the x and y intercepts of 2x+5y=10
PLEASE
Answers
So 2x+5y=10, is the given equation and then it becomes 2x+5(0)=0, once you plug in y=0.
which leads to 2x+0=10 once you multiply 5 and 0.
So then simplify to get 2x=10
divide both sides by 2 to eliminate 2x so it's 2x/2=10/2.
Then solve for x for both sides so it will be x=5.
The x intercept will be (5,0).
For the y intercept first you plug x=0 and solve for x
So the equation is 2x+5y=10 but now becomes 2(0)+5y=10.
Next multiply the 2 and 0 which becomes 0+5y=10.
Simplify the equation so now it's 5y=10.
Next is to divide both sides by 5 to isolate the y so 5y/5=10/5
Finally y=2
so the y intercept would be (0,2).
Triangle XYZ with vertices X ( 5 , 7 ) , Y ( 8 , 3 ) , and Z ( 2 , 3 ) is reflected over the y-axis and translated up 4 units to form triangle X ` Y ` Z ` . What is the length of segment Y ` Z ` ?
Answers
After the reflection and the translation of XYZ, the length of segment Y'Z' is 6 units
How to determine the length of segment Y'Z' ?The transformation is given as:
Reflection across the y-axisTranslation 4 units upBoth transformations are rigid transformations.
This means that the lengths YZ and Y'Z' would remain the same
The coordinates are given as:
Y = (8,3)
Z = (2,3)
Both points are on the same y coordinate.
So, the length YZ is
YZ = 8 - 2
Evaluate
YZ = 6
Hence, the length of segment Y'Z' is 6 units
Read more about transformation at:
https://brainly.com/question/4289712
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Miranda has 55 feet of fencing. She wants to use all the fencing to create a rectangular garden. The equation 2l+2w=55, where l is the length of the garden and w is the width, models the scenario. This equation can be used to find on dimension of the garden if the other dimension is known. If Miranda makes the garden 17.5 feet long, how wide should she make it? PLEASE HURRY
Answers
2(17.5) + 2(10) = 55
how much gift warp is needed to cover a box which measures 3 feet by 2 feet by 3 feet
Answers
2 sides of 2 = 4 feet
12+4 = 16
Answer:
42 ft²
Step-by-step explanation:
You need the total surface area of the box which is shaped like a rectangular prism.
surface area = area of bases + lateral area
Let length = 3 ft, width = 2 ft, height = 3 ft.
The base is a rectangle 3 ft by 2 ft.
The perimeter of the base is 2(3 ft + 2 ft) = 10 ft
The lateral area is (perimeter of the base) × height = 10 ft × 3 ft = 30 ft²
The area of the two bases is 2 × (3 ft × 2 ft) = 12 ft²
The total surface area is 30 ft² + 12 ft² = 42 ft²
A circle has a radius of 9 cm. What is its circumference?
Use 3.14 for n, and do not round your answer. Be sure to include the correct unit in your answer.
0
9 cm
Answers
Answer:
56.52 cm
Step-by-step explanation:
Concepts
The circumference of a circle is the distance around it, or the perimeter of the circle. The formula to find the circumference is 2πr, where r = radius.
Application
We're given the radius as 9 cm, and we have to find the circumference of the circle using π as 3.14. Let's use the formula 2πr to solve for this.
Solution
[tex](2)(3.14)(9)[/tex] [tex](6.28)(9)[/tex][tex]56.52[/tex]The diagram below shows a rectangle with a shaded region. What is the area, in square meters, of the shaded region in the diagram?
I really need help
Answers
Answer:
Step-by-step explanation:
Area of shaded region= area of rectangle- area of triangle
Area of rectangle= l×b
=9×3
= 27m²
Area of triangle= [tex]\frac{1}{2}[/tex] b×h
=[tex]\frac{1}{2}[/tex] ×3×3
=[tex]\frac{9}{2}[/tex] ⇒4.5
Area of shaded region= area of rectangle- area of triangle
=27-4.5
=22.5m²
yeah I still don't get how the pythagorean theorem works sue me.
Answers
Answer:
22.25
Step-by-step explanation:
Pythagorean theorem is a^2+b^2=c^2
a---leg a=17
b---leg b=?
c----hypotenuse c=28
[tex]17^2+b^2=28^2\\289+b^2=784\\b^2=495\\\sqrt{b^2}=\sqrt{495}\\b = 22.25[/tex]
Help!! I'm confused.
Answers
Answer:
12 seconds
Step-by-step explanation:
we need to find the Lcm which is 12
they both flash after 12 seconds
Answer:
Every 12 seconds
Step-by-step explanation:
You must find the LCM (Least common denominator)
4 x 3 = 12
Because 3 goes into 6 and 4 is four so the LCM is 12
I need this answered please
Answers
Answer:
See the attachment.
1) A school has 1500 students and they are going to vote as to whether they will completely convert the school completely off fossil fuels. How many students would you have to poll to be 95% confident of the outcome within /- 3% of the vote
Answers
Using the z-distribution, it is found that 1068 students have to be polled to be 95% confident of the outcome within +/- 3% of the vote.
What is a confidence interval of proportions?A confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.The margin of error is given by:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In this problem, we have a 95% confidence level, hence[tex]\alpha = 0.95[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so the critical value is z = 1.96.
We have no estimate for the true proportion, hence we use [tex]\pi = 0.5[/tex], and solve for n when M = 0.03. Then:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.03 = 1.96\sqrt{\frac{(0.5)(0.5)}{n}}[/tex]
[tex]0.03\sqrt{n} = 1.96(0.5)[/tex]
[tex]\sqrt{n} = \frac{1.96(0.5)}{0.03}[/tex]
[tex](\sqrt{n})^2 = \left(\frac{1.96(0.5)}{0.03}\right)^2[/tex]
n = 1067.11.
Rounding up, 1068 students have to be polled to be 95% confident of the outcome within +/- 3% of the vote.
More can be learned about the z-distribution at https://brainly.com/question/25890103
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Write three value that makes 3 > x true How do you know?
Answers
Answer:
3>2
3>1
3>0
is that what u wanted?
if so, ur welcome :)
brainliest please?
Find the circumference.
Use 3.14 for π.
O
r = 6 ft
C = [?] ft
C = πd
Answers
Answer:
37.68 ft
Step-by-step explanation:
Formula
Diameter = 2r (where r is the radius)
Circumference of a circle = πd (where d is the diameter)
Given:
π = 3.14r = 6 ft⇒ Diameter = 2 × 6 = 12 ft
Substituting the given values into the formula:
⇒ C = πd
⇒ C = 3.14 × 12
⇒ C = 37.68 ft
A triangular pyramid…
Pls help me out
Answers
What is the difference between averages of pizza sales from week 2 and week 1 at Cheezy Pizza?
1.5 pizzas
3.3 pizzas
2.3 pizzas
5 pizzas
Answers
HELPP PLEASEEE ASAP!!!
Answers
Answer:
well the odds would be 2:3 because 1 3 5 and 7 are prime numbers so the pin might just land on one of them
Step-by-step explanation:
what are the solutions to the equation 3/4x^2=48
Answers
First divide, then square root to get rid of the squared.
What is the range of the function f(x) = x^3 - 3x^2 - 4x
Answers
If X y = 2 then Y² + **
Answers
Answer:
Answer is in the picture
( It would be absolutely kind of you to give me a "brainliest answer")
Goodluck
Find the next two terms in this
sequence.
1, 2, 6, 24, 120, [?],[]
Answers
1x1=1
1x2=2
2x3=6
6x4=24
24x5=120
120x6=720
720x7=5040
the answer is 720 and 5040
A bag contains 10 marbles: 2 are green, 3 are red, and 5 are blue. Reuben chooses a marble at random, and without putting it back, chooses another one at
random. What is the probability that the first marble is red and the second is blue? Write your answer as a fraction in simplest form.
Answers
Answer:
3/10 for the first and the second 5/9
Last one guyss huhu thank youu
[tex] \huge \rm \color{red}help \: pls[/tex]
Answers
Answer:
1/2 split into 1/3 = 1/6
