Answer:
31/20 = 1.55
1.6
The mean of on road accidents reported to the police for the days in December is 6.7
What is the meaning of mean ?In a group of numbers, the mean is the average or most common value. It is a measure of central tendency of a probability distribution along the median and mode in statistics.
It is given in the question about the information on road accidents reported to the police for the days in December.
Mid point of (0-5) = 2.5
Mid point of (6-10) =8
Mid point of (11-15)=13
Mid point of (16-20) = 18
Mean = (∑Midpoint * frequency )/ (∑ frequency)
[tex]\rm Mean = \dfrac{2.5\times18+8 \times4+13\times6+18\times3}{18+4+6+3}\\\\\\\rm Mean = \dfrac{209}{31}\\[/tex]
Mean = 6.74
Mean = 6.7
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please help me with this it's worth 80 points
and please show all work
3x - 4 + 6x = -31
17 = 3x - 10
2x + 6 = 4x - 8
17x - 5(3x - 11) = 41
5x - (3x - 6) = 18
6x - 3(4 - 5x) = 30
x - (-5) = 7
This is a lot of questions-
I did them all on a calculator.
1.)
3x - 4 + 6x = -31
3x + 6x - 4 = -31
9x - 4 = -31
9x = -27
Answer: x= -3
2.)
17 = 3x - 10
3x -10 = 17
-10 = -10
3x = 27
divide both sides by 3
Answer: x= 9
3.)
2x + 6 = 4x - 8
-6 = -6
2x = 4x -14
-4x (both sides)
-2x = -14
divide both sides by -2
Answer: x = 7
4.)
17x - 5(3x - 11) = 41
2x +55 = 41
-55 (both sides)
2x = -14
divide 2 both sides
Answer: x = -7
5.)
5x - (3x - 6) = 18
2x + 6 = 18
-6 both sides
2x = 12
divide both sides by 2
Answer: x = 6
6.)
6x - 3(4 - 5x) = 30
21 - 12 = 30
+12 boh sides
21x = 42
divide both sides by 21
Answer: x = 2
7.)
x - (-5) = 7
x + 5 = 7
-5 both sides
Answer: x = 2
Use the distributive property to write an equivalent expression.
2(n+8p)
Answer:
2n+16p
Step-by-step explanation:
dont be shy answer my math equation.
Where would you locate √6 on a number line?
between 2.0 and 2.25
between 2.25 and 2.5
between 2.5 and 2.75
between 2.75 and 3.0
Answer:
i wanna say 2.25 and 2.5 but I'm not entirely sure
please help!!!!!!!!!!!!
I Did This And I Somehow Came Out To B. So B I Guess Sorry if Im Wrong
Write the first 4 terms of the sequence.
f(1) = 2 and f(n) = f(n - 1) + 2 for each whole number n greater than 1.
A 1,3,5, 7
B) 2,4,6,8
C) 1,2,3,4
D) 2,3,4,5
How do I write the First 4 terms so I can solve for the answer?
Answer:
Use the given functions to set up and simplify
7B.4=f(1)=2=Always(true)n=Always(true)1A⋅1=A3=A5=A7B=A
Step-by-step explanation:
3/4(x+8) > 1/2(2x+10)
solve -3/8y=-24 urgent it’s a timed test!
Answer:
y = 64Step-by-step explanation:
-3/8y = -24
-3y = -24 (8)
y = -192 / -3
y = 64
What does the - 8 do in the function k(x)?
k(x) = x^2 - 8
Answer:
the negative 8 is the y-intercept of the equation. This means that this is y value of where 0 is on the x-axis. The point for the y-intercept is (0,8)
Given h(x) = -4x – 5, solve for x when h(x) = 7.
Answer:
x=-3
Step-by-step explanation:
h(x)=7
-4x-5=7
-4x=12
x=-3
Answer: -3
Step-by-step explanation:
round 4.30132 to the nearest thousandth
Answer:
4.301
Step-by-step explanation:
What is -11 x -8?
I suck at math :(
i didnt see the - on the 11 and 8 my bad :(
Answer:
88?
Step-by-step explanation:
I need help with something maybe if I can send a picture of it it will be easier
Answer:
sure send it and I will do my best to help you..
What is 0.23 divided by 0.7?
0.328571428571
ly guys <3
Complete the following problems.
Amy has $50 in her lunch account. Amy spends $3 a day for lunch. Amy's mother receives a notification when Amy's
account balance reaches $5 or lower. How many lunches can Amy purchase until her mother receives a notification? And what is the equation in slope intercept form
Answer:
Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.
Step-by-step explanation:
The balance Amy has in her lunch account is a function of the number of lunches she has consumed.
The initial balance is $50 and it decreases by $3 for every lunch Amy has. Thus, the function that models the balance in her lunch account is:
[tex]B(x)=50-3x[/tex]
Where x is the number of lunches.
Her mother receives a notification when the balance goes at $5 or lower, thus the condition that triggers the notification is:
[tex]B(x) \le 5[/tex]
Or, equivalently:
[tex]50-3x\le 5[/tex]
Subtracting 50:
[tex]-3x\le 5-50[/tex]
[tex]-3x\le -45[/tex]
Multiplying by -1 (and flipping the sign):
[tex]3x\ge 45[/tex]
Solving:
[tex]x\ge45/3[/tex]
[tex]x\ge 15[/tex]
Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.
How Do I do this word problem
Answer:
just do what it says
Step-by-step explanation:
this month, Carla caught the following fish in lake George: 24 trout, 41 sunfish, 12 perch, and 23 bluegills. If Carla catches another fish this month , what's the probability of her catching a trout
Answer:
I believe the answer is about 1/2!
Step-by-step explanation:
I don't have a step-by-step but when I took a test this question was on it and I got the question right by putting about 1/2!
The probability of her catching a trout is 6/25
What is probability ?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
According to the question
based on given condition , formulate
24 ÷ (23 + 12 + 24 + 41)
Calculate sum or difference = 24/23 + 12 + 24 + 41
Calculate sum or difference = 24/59 + 41
Calculate sum or difference = 24/100
Reduce the fraction = 6/25
Hence, the probability of her catching a trout is 6/25
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For the given functions f and g, complete parts (a)-(h). F
f(x) = 5x + 8; g(x) = 7x-2
Answer:
9
Step-by-step explanation:
use math and add way after it
u welcome does work for u
V I’mhjhvcbjvcvjhvvvggujvvcghhhvcccgggghh
Answer:
the like terms were not grouped together.
Which is the first step in solving
X-2 = 2?
Answer:
The first step is to find a number that when subtracted from 2 gives you 2.
Step-by-step explanation:
The algebraic part of this problem would be to add the -2 (adding 2 to both sides) to both sides, so
first x-2=2, then x-2(+2)=2(+2) which would give us,
x=4
*note: the parenthesis are just to show that we are adding the 2, to make it more understandable.
which ordered pairs is a solution to the equation y=4x-17? (it’s more then one )
Answer:
(1,-13) (4,-1) (7,11)
Step-by-step explanation:
Those are all the correct order pairs!!
hope this helps!
Andy drove 840 miles in 12 hours. How far could he drive in 1 hour?
Answer:
70
Step-by-step explanation:
Divide 840 by 12 and you get 70 miles.
Hey, he's speeding! I should give him a ticket.
Can I have brainlliest?
Hope it helped.
There were 3 boys for every 4 girls how many student i all went the trip
Answer:
7
Step-by-step explanation:
Answer:
it depend on how many students there were in total so you can know how many boys and girls
Step-by-step explanation:
The diagram at the right shows a path through a garden.
The approximate length of the path, p, can be found with the formula
[tex]} p^{2}[/tex] =[tex]8^{2}[/tex] + [tex]10^{2}[/tex]
Which of the following measures is closest to the length
of the path?
A. 10 m
B. 12 m
C. 13 m
D. 18 m
Answer: B about 13 m
Step-by-step explanation:
Calculate 8² = 64 and 10² = 100 Add to get 16
Then get √164 = =12.80624847
Round up to 13.
Plz help! Are they right? The questions are below!
Answer:
The sencond is wrong but the first is good
Step-by-step explanation:
Debbie can type 17 words in 20 seconds. What is her rate in words per minute?
LOOK AT THE IMAGE ABOVE & SOLVE IT BY SHOWING FULL STEPS! I will mark you brainlist if you show full steps
Answer:
Area of original shape: x1
Area of zoomed shaped: x4
Perimeter of original shape: x1
Perimeter of zoomed shaped: x2
Step-by-step explanation:
Since the image is zoomed in by 2, it means that all measurements are doubled. When calculating the area, the zoomed shape had an area 4 times greater than the original shape! With perimeter, instead of the same multiplier, the perimeter of the zoomed shape was only doubled of the original shape.
Will give brainliest, like, comment, and 5 points the the best answer
The answers you can choose from are proportional or non-proportional.
Could you please answer this:
Answer:
Fractions with variablies are proportional anyway, and any number is proportional as long as it has the same ratio.
Step-by-step explanation:
6. Claire buys DVDs online. Each DVD that she orders costs $15 and shipping for her order is $10.
Claire can spend no more than $100. How many DVDs can she buy?
Answer:
5 dvds
Step-by-step explanation:
15 per dvd
15x+10 and then it has to be less then 100
A DVD normally costs $20. The price changes to $9.50 when it goes on sale. How much is the percent of change on the DVD
Tbh it might be 55 percent
You start at (4, 4). You move right 1 unit and down 4 units. Where do you end?
Answer: (5,0)
Step-by-step explanation:
Answer:
You would end at (5,5)
On the the grid or your platform I believe