Answer:
mean=sum of data/no of data
=12/3
=4
Step-by-step explanation:
therefore mean=4
Answer:
3+6+3 = 12
12/3 = 4
Step-by-step explanation:
Therefore the mean is 4
What is the angel of c??
probability of rolling a factor of 45
Answer:
Step-by-step explanation:
POOP THEN PEEEEEE
Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for $532
Answer:
★ Given :
Cost of 50 chickens and 30 ducks = $ 550
Cost of 44 chickens and 36 ducks = $ 532
★ To find :
Cost of chicken and duck
★ Solution :
Assume :
Cost of chicken = x
Cost of duck = y
According to question :
50x + 30y = 550 ......(1)
44x + 36y = 532......(2)
1) - (2)
(50x + 30y) - (44x + 36y) = 550 - 532
50x + 30y - 44x - 36y = 18
6x - 6y = 18
6(x - y) = 18
x - y = 18/6
→ x - y = 3 ....(3)
In equation 1 ,
50 x + 30y = 550
taking 10 common
10(5x + 3y) = 550
5x + 3y = 550/10
5x + 3y = 55
by taking 3 common
3(5/3 x + y) = 55
by dividing 3 on both sides
5/3x + y = 55/3 .....(4)
(3) + (4)
x - y + 5/3 x + y = 3 + 55/3
x + 5/3 x = 64/3
8/3 x = 64/3
by multiplying 3 on both sides
8x = 64
x = 64/8
→ x = 8
→ Cost of chicken = $ 8 ..
by putting value of x in equation 3
x - y = 3
8 - y = 3
y = 8 - 3
→ y = 5
→ Cost of ducks = $5..
Step-by-step explanation:
mrk me brainliest plz
Which point on the number line could represent 85%?
Answer:
8/5 and -8/5
Step-by-step explanation:
All dimensions of a cylinder are multiplied by 1.5. Which statement is true?
A. The total surface area is multiplied by 3.375.
The volume is multiplied by 2.25.
B. The total surface area is multiplied by 2.25.
The volume is multiplied by 3.375.
C. The total surface area is multiplied by 3.
The volume is multiplied by 4.5.
D. The total surface area is multiplied by 4.5.
The volume is multiplied by 3.
Answer:
The true statement is;
B. The total surface area is multiplied by 2.25
The volume is multiplied by 3.375
Step-by-step explanation:
By scale drawing proportionality, we have;
The amount by which all the dimensions of the cylinder are multiplied to create an image of the cylinder = 1.5
∴ The scale factor between the original cylinder and the image of the cylinder, S.F. = 1.5
By rule, we have;
The area factor of the surface area = S.F.² = 1.5² = 2.25
Therefore;
The total surface area of the original cylinder is multiplied by 2.25 to get the total surface area of the image of the cylinder
By rule, we have;
The volume factor = S.F.³ = 1.5³ = 3.375
Therefore;
The volume of the original cylinder is multiplied by 3.375 to find the volume of the image of the cylinder.
Answer:
B
Step-by-step explanation:
Please help me with this
Answer:
12m
Step-by-step explanation:
its similar triangles the opposite is always 2times the side.
A box contains 7 red marbles, 4 white marbles, and 5 blue marbles. If only white marbles are added to the box, how many must be added to
make the probability of drawing a white marble ş?
A: 1
B: 2
C: 5
D. 7
E: 12
Daniel has 6 erasers. he give one to p.j. and. he gives one to ken. he keeps. the rest. what friction of his erasers did he give away.
Answer:1/3
Step-by-step explanation:
He gave away 2/6 of the erasers. You can simplify that by doing 2 divided by 2 6 divided by 2 which makes it 1/3. Daniel gave away 1/3 of the erasers.
Answer:
1/3
Step-by-step explanation:
he gave one to p.j=1/6
he gave one to Ken=1/6
1/6 +1/6=2/6=1/3
PLS HELP MEEEE I WILL GJVE BRAIN THINGY!!!!!
Answer:
last one
Step-by-step explanation:
Answer:
D. -5-3
Step-by-step explanation:
When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval (CI) and margin of error (ME) for the true proportion of all college students who own a car.
Answer:
The margin of error will be "0.65". A further explanation is provided below.
Step-by-step explanation:
The given values are:
n = 343
x = 110
At 99% confidence level,
[tex]\alpha = 1-99[/tex]%
[tex]=1-0.99[/tex]
[tex]=0.01[/tex]
then,
[tex]\frac{\alpha}{2} =\frac{0.01}{2}[/tex]
[tex]=0.005[/tex]
or,
[tex]Z_{\frac{\alpha}{2} }=Z_{0.005}[/tex]
[tex]=2.576[/tex]
Now,
The point estimate will be:
⇒ [tex]\hat{P}=\frac{x}{n}[/tex]
⇒ [tex]=\frac{110}{343}[/tex]
⇒ [tex]=0.321[/tex]
or,
⇒ [tex]1-\hat{P}=1-0.321[/tex]
⇒ [tex]=0.679[/tex]
The margin of error will be:
⇒ [tex]E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )[/tex]
On substituting the above values, we get
⇒ [tex]=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }[/tex]
⇒ [tex]=2.576\times \sqrt{\frac{0.217959}{343} }[/tex]
⇒ [tex]=0.065[/tex]
hence,
⇒ [tex]\hat{P}-E<p<\hat{P}+E[/tex]
⇒ [tex]0.321-0.065<p<0.321+0.065[/tex]
⇒ [tex]0.256,0.386[/tex]
Find the area of the shape shown below. PLZ ANSWER
Answer:
Hello! answer: 7
Heres an image to explain I hope this helps you!
Answer:
i belive th answer is 58
Step-by-step explanation:
so you have 3 right angles so thais 90 x 90x90
HELPPPPPP. In a class activity, students collected data on the average number of pepperoni slices on various sizes of pizzas. A "New York" style pizza has a diameter of 18 inches. Use the least-squares regression line to predict the average number of pepperoni slices that the students could expect to on a "New York" style pizza. Pepperoni = - 0.156 Diameter
a.) 49 pepperoni slices
b.) 7 pepperoni slices
c.) 60 pepperoni slices
d.) 2 pepperoni slices
Answer:
49 slices
Step-by-step explanation:
.
Answer:
A) 49 slices
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
2
Step-by-step explanation:
First off, the slope of f(x) is -4. It is in the form y=mx+b and m=-4.
For g(x), the slope can be calculated from any two points given. I willuse (1,9) and (3,21) because I like positive numbers. So, slope is rise over run and it is calculated from (y1-y0)/(x1-x0) This gives me (21-9)/(3-1) which is equal to 6. So adding the two slopes: 6+ (-4)=2
i hatte math so much
me too but i think the answer would be F.
Would you rather lose the ability to cry or cry every day for 20 minutes randomly?
Answer:
Lose the ability to cry because i dont cry that much
Step-by-step explanation:
Answer:
loose the ability to cry l m a o
Step-by-step explanation:
Can someone plz help me plz I beg u :/
Answer:
i think the answer is b
Step-by-step explanation:
the others just dont feel right
URGENT!!
Solve for X
Answer:
[tex]\frac{X}{100} =\frac{600}{800} \\\\X = \frac{6}{8} \times 100 = 75[/tex]
Which numbers are factors of both 12 and 42?
Answer:
12
Step-by-step explanation:
Find (−7x+6)−(−10x+8)
Answer:
3x-2
Step-by-step explanation:
(-7x+6)-(-10x+8)
open the parenthesis
-7x+6+10x-8
combine like terms
3x-2
Can someone please help me with this question for hw
PLEASE NO LINKS Thanks :))
Answer:
C: 22 points.
Step-by-step explanation:
Consecutive angles in a parallelogram are always ?
Answer:
Consecutive angles of a parallelogram are congruent.
What are all expressions that are equivalent to 6(2–4n)
Answer:
I found 1 and its 18(6-12n)
Is this by chance a multiple choice question?
Step-by-step explanation:
Write the equation in point-slope form of the line that passes through the given point and has the given slope: (-2, -1); m=-3
Answer:
y+1=-3(x+2)
Step-by-step explanation:
point-slope form is the formula y-y1=m(x-x1), where (x1, y1) is a point and m is the slope
we are given a point (-2, -1) and a slope of -3
all we really need to do is substitute the given into the formula
remember: since the formula gives subtraction, we're going to be subtracting, even though we have negative numbers
substitute -2 as x, -1 as y and -3 as m
y--1=-3(x--2)
we can simplify this equation:
y+1=-3(x+2)
Hope this helps!
An arborist examined trees in an orchard to see if they were infected with a virus. The arborist counted 7 infected trees and 43 healthy trees. What percentage of the trees in the orchard were infected?
Answer: Percentage of infected trees =2%
Step-by-step explanation:
Number of Infected trees =7
Number of healthy trees=43
Total number of trees in the orchard=43+7=50
Percentage of infected trees =Number of Infected trees/Total number of tress in the orchard x 100
7/50 x 100 =2%
Apply the distributive property to create an equivalent expression. (6m -7) ⋅ 4
Answer:
24m-28
Step-by-step explanation:
I hope this helps!
answer:
the simplified version of this is: 24m-28
I know the answer but I don’t know how to solve it
Answer: b
Step-by-step explanation:
I can't see the question
HELPPPPPPP PLZZZZZZZZ
Answer:
azesrdftgyuh
Step-by-step explanation:
dxcfvghbj
NEED HELP ASAP!!!
complete the table to show an equivalent ratio where the number of ears at the start of 100.
Answer:
60
Step-by-step explanation:
If Isabelle sells 150 out of 250 ears of corn. Then the percentage of the ears of corn she sold will be 60%.
What is the percentage?The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.
Every morning she starts with 250 ears of corn.
On Saturday, Isabelle sells 150 out of 250 ears of corn.
Then the percentage of the ears of corn she sold will be
[tex]\rm P = \dfrac{150}{250} \times 100\\\\P = 15 \times 4\\\\P = 60 \%[/tex]
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
Ravi and Hasan bought 13⁄4 of pies , Ravi ate 1/3 and Hasan ate 2/3 of it
. How much pie is left?
Answer:
The final answer is 0
Step-by-step explanation:
1/3 + 2/3 = 1 which means Ravi and Hasan ate the whole thing
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!