Answer:
csdkc kwhbfc d cjasd c
Step-by-step explanation:
sdjnf ewaihfbashehkf liq4bf;wjhf
Tonya has a 2-page story she wants to expand. She plans to write 3 pages per day until it is done. Which equation best represents the relationship?
Answer:
D. 60h = m
Step-by-step explanation:
A proportional equation that represents the relationship will be in the form of m = kh
Where,
Constant of proportionality = k = m/h
Using (2, 120),
k = 120/2
k = 60
Substitute k = 60 into m = kh
Thus:
m = 60h
This can also be written as 60h = m
Find the area of the image below: (4 points)
01) 41 square units
2) 44 square units
3) 52 square units
4) 56 square units
five hotdogs cost $1.80.Each hotdog cost the same amount.What is the cost per hotdog in dollars and cents
Answer:
$0.36
Step-by-step explanation:
Answer:
$0.36
Step-by-step explanation:
You divide $1.80 by 5.
Select the correct answer.
Find the solution(s) for x in the equation below.
A. x = -5
B. no solutions
C. x = 5
D. x = 5; x = -5
Answer:
Step-by-step explanation:
X=5; X=-5 this is the answer i put and got off math:::way
Question regarding a Normal Distribution chart: Ten thousand adults were given a literacy test. The results were nearly normally distributed (μ = 75, σ = 15).
A. About how many scored between 60 and 80?
B. Approximately what score did only the top 15% exceed?
C. Find the percentile rank of the person who scored 88.
Answer:
a) 4,706 scored between 60 and 80
b) A score of 90.6.
c) 81th percentile.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
[tex]\mu = 75, \sigma = 15[/tex]
A. About how many scored between 60 and 80?
Proportion:
This is the pvalue of Z when X = 80 subtracted by the pvalue of Z when X = 60. So
X = 80
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80 - 75}{15}[/tex]
[tex]Z = 0.33[/tex]
[tex]Z = 0.33[/tex] has a pvalue of 0.6293
X = 60
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{60 - 75}{15}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
0.6293 - 0.1587 = 0.4706
How many?
0.4706 out of 10,000, so
0.4706*10000 = 4706
4,706 scored between 60 and 80.
B. Approximately what score did only the top 15% exceed?
The 85th percentile, which is X when Z has a pvalue of 0.85. So X when Z = 1.037.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]1.037 = \frac{X - 75}{15}[/tex]
[tex]X - 75 = 1.037*15[/tex]
[tex]X = 90.6[/tex]
A score of 90.6.
C. Find the percentile rank of the person who scored 88.
This is the pvalue of Z when X = 88. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{88 - 75}{15}[/tex]
[tex]Z = 0.87[/tex]
[tex]Z = 0.87[/tex] has a pvalue of 0.8078
So, rounding up, the 81th percentile.
Freddie made the number line below to model the laps he walks around a track at his
school. He walks a total of 1} miles. Each lap is į mile. How many laps does Freddie walk
around the track?
Answer:
On a standard running 400-meter track a mile is 4 laps… plus 9 more meters if you want to get all technical about it. A mile is specifically 1,609.3 meters.
Step-by-step explanation:
0.4(0.25)(0.01) is the problem
3х + 8 = 32
Can someone help to solve for y
Answer:
[tex]3x + 8 = 32 \\ 3x = 32 - 8 \\ 3x = 24 \\ x = \frac{24}{3} \\ x = 8[/tex]
A line passes through (3, 7) and (6, 9). Which equation best represents the line?
(4 points)
A) y = 3 over 2 x + 5
B) y = 2 over 3 x + 5
C) y = 3x + 2
D) y = 2 over 3 x + 2
Answer:
https://brainly.com/question/2574086b
Step-by-step explanation:
https://brainly.com/question/2574086
Answer:
B
Step-by-step explanation:
Given two points, the equation of the line may be determined by,
y - y1 = ((y2 - y1) / (x2 - x1))(x - x1)
Substituting the given values,
y - 7 = ((9 - 7) / (6 - 3))(x - 3)
Simplification will yield to an answer of,
y = 2x/3 +5
Thus, the answer is the second choice.
Discussion Prompt: A fair coin is tossed twice and the number of heads is recorded. Jose says the P(1 head) = 1/2, while Jeff students says P(1 head) = 1/3. Explain in detail why Jose is correct.
Let H represent heads and T represent tails.
Writing HH means we get two heads and HT means we get heads first, then tails second, and so on.
We have these four possible outcomes when flipping two coins
HHHTTHTTOf those four outcomes, two of them have exactly one head show up (HT and TH). The probability of getting exactly one head is 2/4 = 1/2, so this is why Jose is correct.
(4x-4)-8x
a. -8x
b.-4x-4
c.-4x+4
d.12x-4
Answer:
-8x
Step-by-step explanation:
if it helps you then plzz mark me brainliest
What is 15% of 120? (:)) I ALSO NEED EXPLANATION
Answer:
Answer: 18
Step-by-step explanation:
Do 120 x 15%
Answer:
18
Step-by-step explanation:
15% is 15 out of 100, so in decimal form it would be 0.15. if you multiply 0.15 by 120 (0.15 * 120) you would get 18.
A rectangular box is 40 cm wide and 36 cm high. If the surface area of the box is 7440 square centimeters, find the length of the box.
Answer:
The length of the rectangular box is 30 centimeters.
Step-by-step explanation:
Let suppose that rectangular box is closed. The rectangular box is represented by a parallelepiped, whose surface area ([tex]A_{s}[/tex]), measured in square centimeters, is defined by the following formula:
[tex]A_{s} = 2\cdot (w\cdot h + w\cdot l + h\cdot l)[/tex] (1)
Where:
[tex]w[/tex] - Width, measured in centimeters.
[tex]h[/tex] - Height, measured in centimeters.
[tex]l[/tex] - Length, measured in centimeters.
If we know that [tex]A_{s} = 7440\,cm^{2}[/tex], [tex]w = 40\,cm[/tex] and [tex]h = 36\,cm[/tex], then the length of the rectangular box is:
[tex]2880 +80\cdot l + 72\cdot l = 7440[/tex]
[tex]152\cdot l = 4560[/tex]
[tex]l = 30\,cm[/tex]
The length of the rectangular box is 30 centimeters.
HELP!!! NEED HELP! It is a very confusing lesson
what is -9x - 5x + 6x + 3 = ?
Answer:
-8x + 3
Step-by-step explanation:
1. Sam knows that his MP3 player has 40% of its battery life left and that the battery
charges by an additional 12 percentage points every 15 minutes. What percent of
the mp3's battery will be charged when Sam and his family leave?
I
Complete question :
Sam knows that his MP3 player has 40% of its battery life left and that the battery
charges by an additional 12 percentage points every 15 minutes. What percent of
the mp3's battery will be charged when Sam and his family leave? If mp3 was plugged in an hour before his family plan to leave.
Answer:
88%
Step-by-step explanation:
Time before leaving = 1hour
Current percentage = 40%
Charge rate = 12% every 15 minutes
Therefore,
Charge rate per minute :
12% / 15 = 0.8% per minute
Charge recieved after one hour (60 minutes) :
0.8% * 60
= 48%
Therefore, total charge after just before leaving is:
Current percentage + percentage received
40% + 48%
= 88%
A computer system valued at $1500 three years ago is now worth $600. Find the percentage decrease in the value or the computer system?
100 point answer please use the formula (P)(T)=A and show how you plugged everything in
Answer:2100-2200$
Step-by-step explanation:
Help pls I need it before 11:59
Answer:
5/6
Step-by-step explanation:
probability of rolling a 5 on a die=1/6
P of not rolling a 5 = 1-1/6= 5/6
Evaluate the expression
3^3 x (12 - 2) ➗ 2
Answer:
135
Step-by-step explanation:
First 12-2=10
Then 3^3=27
After 27 times 10=270
Lastly 270 divided by 2=135
The simplified value of the expression 3³ × (12 - 2) ÷ 2 is 135.
What is PEMDAS rule?PEMDAS rule states the correct order of simplifying an expression is as follows -: Parenthesis, exponents, multiplications, divisions, additions, and, subtractions.
Given, an expression 3³ × (12 - 2) ÷ 2.
= 27 × (10)×1/2.
= 27 × 5.
= 135.
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The City Sights tour company had the same ratio of tourists to guides on both days this weekend. On Saturday, there were 120 tourists and 18 guides. On Sunday, there were 40 tourists.
How many guides were there on Sunday?
Answer:
There were 6 guides on Sunday.
Step-by-step explanation:
Same ratio
On Saturday, 120 tourists and 18 guides.
On Sunday, 40 tourists and x guides.
Due to the same ratio:
[tex]\frac{120}{40} = \frac{18}{x}[/tex]
[tex]3 = \frac{18}{x}[/tex]
[tex]3x = 18[/tex]
[tex]x = \frac{18}{3}[/tex]
[tex]x = 6[/tex]
There were 6 guides on Sunday.
What is the range of this data set?
2.5, 6.1, 9.7, 11.4, 17.5, 20.2, 1.1, 12.6, 18.8
16.3
17.7
18.8
19.1
Answer:
19.1
Step-by-step explanation:
Range = Maximum value - minimum value
= 20.2 - 1.1
= 19.1
Answer:
19.1
Step-by-step explanation:
when you solve range you take the highest point and the lowest point and subtract then that's the answer
Solve Question 2 for x, the number of bracelets Tasha bought:
Question 2: (Tasha bought some bracelets that cost $5 each and 2 hats that cost $12 each. The cost of her total purchase was $39. Which equation can be used to find x, the number of bracelets she bought?)
Answer: x = bracelets
Answer:
x=3 bracelets
Step-by-step explanation:
5(X)+2(12)=39
5X=39-24
5X=15
X=3
Use the graph off to find the value f(5).
Answer:
where is the graph
Step-by-step explanation:
will give brainliest
Answer:
3ft
Step-by-step explanation:
it takes a while to explain and I dont have much time, but the answer is 3
Wich one is a better buy? Show your work.
Answer:
The second one because $2.50
Step-by-step explanation:10.5/3 1/3=3.15 6.25/2.5=2.50
solve for the angle x
Answer:
x=75
Step-by-step explanation:
30+x+x=180
2x=150
x=75
helppppppppppppppppppppppppppp
Which is an INCORRECT name for this angle?
Answer:
<FH
Step-by-step explanation:
The reason why is because FH is a line and everything else includes G, this answer does not.
PLEASE HELP !!!!!!!!!!!! Translate this sentence into an equation.
The sum of 17 and Delia's savings is 52.
Use the variable d to represent Delia's savings.
Which value for k makes the equation 42 ÷ k = 14 true? Select all that apply. A. 588 B. 62 C. 1452 D. 3 E. 23
3 is the value of k in the Linear equation .
What in mathematics is a linear equation?
An algebraic equation with simply a constant and a first-order (linear) component, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables. Equations with variables of power 1 are referred to be linear equations. One example with only one variable is where ax+b = 0, where a and b are real values and x is the variable.
equation 42 ÷ k = 14
42/k = 14
42 = 14 * k
k = 42/14
k = 3
Learn more about Linear equation
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