Answer:
9
Step-by-step explanation:
The mean is calculated by adding up the scores and dividing the total by the number of scores.
In Exercises 25–28, the red figure is the image of the
blue figure after a dilation with center C. Find the
scale factor of the dilation. Then find the value of
the variable.
Dilation involves changing the size of a shape
The scale factor is 2, and the value of the variable is 6
How to determine the scale factorFrom the figure, the scale factor is the quotient of the red figure and the blue figure.
So, we have:
[tex]k = \frac{28}{14}[/tex]
Divide
[tex]k = 2[/tex]
The value of the variable (n) is then calculated as:
[tex]n * k = 12[/tex]
This gives
[tex]n * 2 = 12[/tex]
Divide both sides by 2
[tex]n = 6[/tex]
Hence, the scale factor is 2, and the value of the variable is 6
Read more about dilation at:
https://brainly.com/question/3457976
Help me with number 4 please
Answer:
A = 6
B = 10
Step-by-step explanation:
[] Let's look at the system again:
[tex]\left \{ {{Ax+By=38} \atop {2Ax-By=16}} \right.[/tex]
[] They give us a set of x and y values, (3, 2) so we can plug them into the system.
[tex]\left \{ {{A(3)+B(2)=38} \atop {2A(3)-B(2)=16}} \right.[/tex]
[] Now, we can solve this with a graphing calculator. Let A be x and B be y for the sake of graphing.
A = x
B = y
[tex]\left \{ {{x(3)+y(2)=38} \atop {2x(3)-y(2)=16}} \right.[/tex]
-> See attached
[] We can see the lines intersect at (6, 10) so the answer is A = 6 and B = 10.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
I NEED HELP LOLL
[tex]7 \frac{1}{2} \div \frac{3}{4} = [/tex]
Answer:
the answer is 40/4
Step-by-step explanation: 7 1/4 3/4 40/4
Marco has 10 quarts of water and 20 cups of milk. How much liquid does he have in all?
How do u solve it?
Answer:
15.0721 quarts
Step-by-step explanation:
20 cups= 5.0721 quarts
10 quarts+5.0721=15.0721 quarts
if you need to convert the quarts just search 15.0721 quarts to whatever you need to convert it too.
hope this helps
Maria bought 125 pounds of lunch meat for $3.36. How much would234 pounds of lunch meat cost?
Answer:
$6.6
Step-by-step explanation:
This is what we know:
You can say that they are proportional because there is a unit price for each pound.
There are a couple of ways to do this but I'll show you this one:
Ratio and proportion:
Step-by-step explanation:
https://brainly.com/question/2438420
answer is x= 6.6
1. D
100
2. M
1
3. C
500
4. I
10
5. V
50
6. L
5
7. X
1,000
Hi there!
I will help you with joy!
Arabic numbers - 1, 2, ..., 10,..; Roman numerals: I, II, ... X, ..
Match the Arabic numerals to Roman numerals.
I = 1
V = 5
X= 10
L = 50
C=100
D=500
M = 1,000
Hope it helps!
Enjoy your day!
Ask me if you have any questions.
~Misty~
Answer:
Could you rephrase the question
Step-by-step explanation:
Challenge A cell phone plan costs $19.80 per month for 400 minutes of talk time. It costs an additional $0.06 per minute for each minute over 400 minutes. To get e-mail access, it costs 20% of the price for 400 minutes of talk time. Your bill, which includes e-mail, is the same each month for 6 months. The total cost for all 6 months is $168.48, Write and solve an equation to find the number of minutes of talk time you use each month.
Answer:
2,541 minutes
Step-by-step explanation:
i hope this helps
The vertices of a figure are given. Find the coordinates of the figure after the transformations given.
F(-9, -9), G(-3,-6), H(-3,-9)
Dilate with respect to the origin using a scale factor of. Then translate 6 units up.
Answer:
the answer of the question will be F(7,9)
A photo that is 8 in. wide and 12 in. long is enlarged to 24 in., what is the length of the poster?
Answer:
36 in. long
Step-by-step explanation:
If 8 in = 12 in
then 24 in = x
[tex]x = \frac{12 \times24 }{8} [/tex]
[tex]x = \frac{288}{8} [/tex]
x = 36 in.
A) 3x - y = -4
5x - y = -8
B) 3x - y = -4
5x + y = -8
C) 3x + y = -4
5x - y = -8
D) 3x + y = -4
5x + y = -8
Answer:
D) 3x + y = -4
5x + y = -8
Step-by-step explanation:
find the distance between the points (1, 2) and (4, 3)
Solve for b.
a = 9 b² c
b=±a√3c
b=±ac√9
b=±ac√3c
b=±3ac−−√
b=+ac sqrt 3c
it's b=+ac sqrt 3c
Hᴇʟʟᴏ Bʀᴀɪɴʟɪᴀɴs !!
1) A car moves with a speed of 40 km/h for 15 mins and then with a speed of 60 km/h for next 15 mins . The total distance covered by the car is : _________
(a) 100km. (b) 25km
(c) 15km. (d) 10km
• Don't spam
• Need Genuine Answer with Explanation .
Answer:
25 km
Explanation:
Distance = speed * time
We have change time which are given in minutes to hour. As the speed is mentioned in kilometre per hour.
For part A:
[tex]\rightarrow Distance = speed * time[/tex]
[tex]\hookrightarrow Distance = 40 * \frac{15}{60}[/tex]
[tex]\hookrightarrow Distance = 10[/tex] km
For part B:
[tex]\rightarrow Distance = speed * time[/tex]
[tex]\hookrightarrow Distance =60 * \frac{15}{60}[/tex]
[tex]\hookrightarrow Distance = 15[/tex] km
Total distance covered:
part A + part B
10 km + 15 km
25 km
25 km
Solution :-Speed of the car in first 15 mins ,
The car is moving in the speed of 40 km/h for 15 mins.
Distance covered = speed × Time taken Distance covered = 240 × 15/60 = 10 kmSpeed of car in next 15 mins ,
again ,
distance covered = 60 × 15/60 = 15kmnow , total distance covered = ( 10 + 15 ) km = 25 km
Hope it helps~
5. Peter invests £3550 into a savings account at 3.05% per annum. How much
will he have in his bank account at the end of 5 years?
since it's per annum, we'll assume is compounded interest.
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\pounds 3550\\ r=rate\to 3.05\%\to \frac{3.05}{100}\dotfill &0.0305\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases} \\\\\\ A=3550\left(1+\frac{0.0305}{1}\right)^{1\cdot 5}\implies A=3550(1.0305)^5\implies A\approx 4125.42[/tex]
if y = 1x + 0 then what i the slope?
Please help!!!!!!!!!!
Answer:
Julia find 2 more 3 inch leaves than 4 inch leaves
Use a ratio box to solve this problem. One hundred
inches equal 254 centimeters. How many centimeters
equal 250 inches?
Answer:
vGreat job!
You earned
+5 pts
for helping
Step-by-step explanation:
plz tell me the Right Answer
Answer:
1. a
2. mode is 14,so I think C
3. a because it was around 100
4. a
5. a
6. b
7. a
8. a
9. b
WHAT IS QUESTION B???
Answer:
Step-by-step explanation:
W1: 25 X 3 = 75 ft
N1: 25 X 13 = 325 ft
E1: 25 X 7 = 175 ft
S1: 25 X 5 = 125
W2: 25 X 4 = 100
Add all sides up to get a total of 800
Which relationships describe angles 1 and 2? Select each correct(multiple choice)
a adjacent
b vertical
c supplementary
d complementary
look at the screenshot
Answer:
$132
Step-by-step explanation:
[] First, we will set up an equation for Ross.
-> We will use slope-intercept form (see attached)
-> The slope:
[tex]\frac{y_{2} -y_{1}}{x_{2} -x_{1} }[/tex] = [tex]\frac{81-40.5}{6-3}[/tex]=[tex]\frac{40.5}{3}[/tex]=13.5
-> The y-intercept:
y = 13.5x + b
(81) = 13.5(6) + b
81 = 81 + b
0 = b
-> Final equation:
y = 13.5x
-> For 8 hours, we will plug in 8 as the x.
y= 13.5(8)
y = $108
[] Joey earns 3 dollars more,
y = (13.5 + 3)x
-> Now we will plug 8 into the equation as x,
y = $132
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
Answer:
132
Step-by-step explanation:
if the original population was 500 and now is 2,000 what is the present of increase
Answer:500/2000 = 25/100 = 25%.
Related Standard Percentage Calculations on Change from 2000 to 3000
X Y Percentage(P) Change
2000 3100 55
2000 3120 56
2000 3140 57
2000 3160 58Step-by-step explanation:
somebody please help
A box contains 4 blue pens and 5 red pens. Gus randomly picks a pen
from the box and keeps it. Then Emma picks a pen from the box and keeps it. What if the probability both students will pick a blue pen pls hurry and will give the brainiest
Answer: 12/81 or 15%
Step-by-step explanation:
If you want an explanation you can ask
What’s 2% as a fraction
Answer:
1/50
Step-by-step explanation:
2% is 2/100
Which simplified is 1/50
What is an equation of the line that passes through the points (4,4) and (8.1)
Answer:
y = - 3/4x + 7Step-by-step explanation:
Use both points and find the slope:
m = (1 - 4) / (8 - 4) = - 3/4Find the line, using point-slope form and point (4, 4):
y - 4 = - 3/4(x - 4)y - 4 = - 3/4x + 3y = - 3/4x + 76x−4=26 can anyone find it
Answer:
5
Step-by-step explanation:
6x-4=26
6x = 26+4
6x= 30
x= 5
What is the slope of the line through (-5, 30) and (1, -6)?
Step-by-step explanation:
Slope formula:
[tex] \frac{y2}{x2} - \frac{y1}{x1} = m[/tex]
m = slope
Substitute the points into the formula format:
[tex] \frac{ - 6}{1} - \frac{30}{ - 5} = m[/tex]
Solve:
[tex] \frac{ - 36}{6} = m[/tex]
Divide:
[tex] - 6 = m[/tex]
The slope equals -6.
Please help and show work if you can
Answer:
468mm^2
Step-by-step explanation:
1/2 x 8 x 27=108 triangle area
12 x 30 = 360 rectangle area
108+360=468mm^2
pls help me
Quincy bought 25 lollipops that were 0.25 ach and 20 cany bars that were 0.60 each how much money did quincy spend all together
Answer:
$18.25
Step-by-step explanation:
25x$0.25+20x$0.60= $18.25