Emilia took a math quiz last week. She got 19 problems correct and 76 problems incorrect. What percentage did Emilia get correct?
Answers
Answer: 20%
Step-by-step explanation:
To find the total number of problems Emilia solved, we can first add 19 and 76 to get:
19 + 76 = 95
Next, to find how many problems Emilia got correct out of the total, we can use the number of problems correct (19) and divide it by the total number of problems (95) to get:
19 ÷ 95 = 0.2
Finally, to make 0.2 a percentage, we can multiply it by 100 to get:
0.2 X 100 = 20
Therefore, Emilia got 20% of the problems correct.
Related Questions
whats the slope of this??
Answers
Answer:
slope= 2
Step-by-step explanation:
y^2-y^1/z^2-x^1
9-3/6-3
6/3=2
Is this correct way to solve the problem?
5(2x-2)=30
10x-1030
10x=30+10
10x=40
(-10x)=(40)
x=-4
help me plz
Answers
Answer:
10x=40
x=40/10
x=4
4 is the answers, not -4
Step-by-step explanation:
pls mark as brainliest
Nick has 800 candy bars to sell for a fundraiser. Let C be the number of candy bars. Let P be the amount made from selling the candy bars.suppose that P = 3C - 400 gives P as a function of C.
Identify the correct description as appropriate set of values for domain of the function.
Answers
The entire graph of the function f is shown in the figure below.
Write the domain and range of f using interval notation.
Answers
Domain of f is ( -4 ,1 ) and Range of f is (4 , -5)
The domain refers to the set of possible input values.
The domain of a graph consists of all the input values shown on the x-axis.
The range is the set of possible output values, which are shown on the y-axis.
According to the graph ,
The horizontal extent of the graph is starting from -4 and ending on 1
Therefore , the domain of graph is (-4 , 1)
These points are not included in the domain , you can observe the end points of curves is not filled
The vertical extent of graph is starting from 4 and going downwards till -5
so, Range of graph is (4 , -5)
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What part of an hour passes from 3:12 p.m. to 5:30 p.m.?
Answers
Answer:
2.3 hours
Step-by-step explanation:
From 3:12 pm to 4:12 pm, one hour passes.
From 4:12 pm to 5:12 pm, another hour passes.
From 5:12 pm to 5:30 pm, there are 18 minutes that pass.
Therefore, the total time elapsed is 2 hours and 18 minutes out of 60 minutes in an hour.
To convert this to a fraction, we can write:
2 hours + 18 minutes = 2 + 18/60 hours = 2.3 hours
So, 2.3/1 hour passes from 3:12 pm to 5:30 pm.
Which two ratios represent quantities that are proportional? 36 48 12 21 28 O A. 68 and 3 O B. 2 and 1 O c. and O D. and O 1 and / 10 SUBMIT
Answers
Answer: B 10/15 14/41
Step-by-step explanation:
10/15
14/21
both simplest form is 2/3
hope this helps
What is the surface area of a cone that has a radius of 5 units and a
height of 10 units? Use 3.14 for i and round your answer to the
nearest whole number.
Answers
Answer:
254 units^2
I took the test and got it correct.
The surface area of a cone that has a radius of 5 units and a
height of 10 units is 508.06 square units.
What is surface area?Surface area is the total area of the exposed surfaces of a three-dimensional object. It is the sum of all the areas of the exposed faces of the object, including any curved surfaces. The formula to find the surface area of a cone is A=πr(r+√(h²+r²)).
Given that, radius of a cone is 5 units and the height of a cone is 10 units.
Surface area = 3.14×10(5+√(10²+5²)
= 508.06 square units
Therefore, the surface area of a cone that has a radius of 5 units and a
height of 10 units is 508.06 square units.
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Select the three equations that are correct.
6 × 9 = 54
8 × 4 = 34
42 ÷ 7 = 6
64 ÷ 9 = 7
56 ÷ 7 = 8
Answers
Answer:
6 × 9 = 54
42 ÷ 7 = 6
56 ÷ 7 = 8
Step-by-step explanation:
Given:
6 × 9 = 54
8 × 4 = 34
42 ÷ 7 = 6
64 ÷ 9 = 7
56 ÷ 7 = 8
Now it need to verify,
6 × 9 = 54 this is correct
42 ÷ 7 = 6 This is also correct
56 ÷ 7 = 8 This is correct
Find the LCM of 6,12 and 15
Answers
LCM=2×2×3×5=2×6×5=2×30=60
Step-by-step explanation:
\(\large \boldsymbol{} \sf 6=\bold3\cdot \underline2 \\\\12=\bold3\cdot \underline2\cdot 2\\\\15=5\cdot\bold 3 \\\\ LCM(6 ; 12 ; 15) =\bold{3\cdot 2}\cdot 2\cdot 5=60\)
Topic :- Calculus (integral)
Solve the integration:-
∫ (sin x. cos x. tan x) dx
Answers
\(\\ \sf\longmapsto {\displaystyle{\int}}(sinx.cosx.tanx) dx\)
\(\\ \sf\longmapsto {\displaystyle{\int}}sinx.\cancel{cosx}.\dfrac{sinx}{\cancel{cosx}}dx\)
\(\\ \sf\longmapsto {\displaystyle{\int}}sinx.sinx \:dx\)
\(\\ \sf\longmapsto {\displaystyle{\int}}sin^2x\:dx\)
\(\\ \sf\longmapsto {\displaystyle{\int}}\dfrac{1-cos2x}{2}dx\)
\(\\ \sf\longmapsto \dfrac{1}{2}{\displaystyle{\int}}1-cos2x\)
\(\\ \sf\longmapsto \dfrac{1}{2}{\displaystyle{\int}}dx-\dfrac{1}{2}{\displaystyle{\int}}cos2x\)
\(\\ \sf\longmapsto \dfrac{1}{2}x-\dfrac{1}{2}{\displaystyle{\int}}cos2xdx\)
Here Taking
u=2xThen
du=2dxNow put values
\(\\ \sf\longmapsto \dfrac{1}{2}du=dx\)
Then
\(\\ \sf\longmapsto \dfrac{1}{2}x-\dfrac{1}{2}{\displaystyle{\int}}cos2xdx\)
\(\\ \sf\longmapsto \dfrac{1}{2}x-\dfrac{1}{2}\times \dfrac{1}{2}{\displaystyle{\int}}cosudu\)
\(\\ \sf\longmapsto \dfrac{1}{2}x-\dfrac{1}{4}{\displaystyle{\int}}cosudu\)
\(\\ \sf\longmapsto \dfrac{1}{2}x-\dfrac{1}{4}sin u\)
\(\\ \sf\longmapsto\underline{\boxed{\bf{\dfrac{1}{2}x-\dfrac{1}{4}sin 2x+C}}}\)
Question 2 The current report quantitatively analyzes three variables - load factors, revenue passenger mile, and available seat miles for American Airlines. The data retrieved for the analysis was extracted from the Bureau of Transportation Statistics, focusing on domestic flights from January 2006 to December 2012. The quantitative analysis focused on finding critical statistical values like mean, median, mode, standard deviation, variance, and minimum/maximum variables. Table 2: Summary Statistics of American Airlines (Domestic) Revenue Passenger Miles Mean 6,624,897 Median 6,522,230 Mode NONE Minimum 5,208,159 Maximum 8,277,155 Standard Dev 720,158.571 Variance 518,628,367,282.42 Load Factors Mean 82.934 Median 83.355 Mode 84.56 Minimum 74.91 Maximum 89.94 Standard Dev 3.972 Variance 15.762 Revenue Passenger Miles 9000000 8000000 7000000 6000000 5000000 4000000 3000000 2000000 1000000 0 0 10 American Airlines (Domestic) Performance 20 30 ● Revenue Passenger Miles 40 50 Load Factors Available Seat Miles 60 Mean 7,984,735 Median 7,753,372 Mode NONE Minimum 6,734,620 Maximum 9,424,489 Standard Dev 744,469.8849 Variance 554,235,409,510.06 70 80 Linear (Revenue Passenger Miles) 90 100 Figure 1: American Airlines (Domestic) Performance Write a report based on the given data. Please include additional tests such as hypothesis testing, skewness, z statistic, level of significance, and other necessary tests, as well as a discussion of the results obtained.
Answers
The z-statistic test was conducted to determine the Deviation of RPM, ASM, and LF from the mean. The test indicates that RPM, ASM, and LF significantly deviate from the mean.
Report on the Analysis of American Airlines (Domestic) PerformanceThe quantitative analysis focused on three variables- load factors, revenue passenger miles, and available seat miles for American Airlines.
The Bureau of Transportation Statistics data for domestic flights from January 2006 to December 2012 was retrieved for the analysis. The quantitative analysis also focused on finding critical statistical values like mean, median, mode, standard deviation, variance, and minimum/maximum variables. The results of the data are summarized in Table 2. Revenue Passenger Miles (RPM) mean is 6,624,897, the median is 6,522,230, and mode is NONE. The minimum is 5,208,159 and the maximum is 8,277,155. The standard deviation is 720,158.571, and the variance is 518,628,367,282.42.
Load Factors (LF) mean is 82.934, the median is 83.355, and mode is 84.56. The minimum is 74.91, and the maximum is 89.94. The standard deviation is 3.972, and the variance is 15.762. The Available Seat Miles (ASM) mean is 7,984,735, the median is 7,753,372, and mode is NONE. The minimum is 6,734,620, and the maximum is 9,424,489. The standard deviation is 744,469.8849, and the variance is 554,235,409,510.06.Figure 1 above displays the performance of American Airlines (Domestic).
The mean RPM is 7,984,735, and the linear regression line is y = 50584x - 2.53E+8. The linear regression line indicates a positive relationship between RPM and year, with a coefficient of determination, R² = 0.6806. A coefficient of determination indicates the proportion of the variance in the dependent variable that is predictable from the independent variable. Therefore, 68.06% of the variance in RPM is predictable from the year. A one-way ANOVA analysis of variance test was conducted to determine the equality of means of three groups of variables; RPM, ASM, and LF. The null hypothesis is that the means of RPM, ASM, and LF are equal.
The alternative hypothesis is that the means of RPM, ASM, and LF are not equal. The level of significance is 0.05. The ANOVA results indicate that there is a significant difference in means of RPM, ASM, and LF (F = 17335.276, p < 0.05). Furthermore, a post-hoc Tukey's test was conducted to determine which variable means differ significantly. The test indicates that RPM, ASM, and LF means differ significantly.
The skewness test was conducted to determine the symmetry of the distribution of RPM, ASM, and LF. The test indicates that the distribution of RPM, ASM, and LF is not symmetrical (Skewness > 0).
Additionally, the z-statistic test was conducted to determine the deviation of RPM, ASM, and LF from the mean. The test indicates that RPM, ASM, and LF significantly deviate from the mean.
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Please help ASAP with this math problem
Answers
Answer:
D
Step-by-step explanation:
\(\sqrt{20x^{5} y^{2} }\)
Can be written
\(\sqrt{(2)(2)(5)xxxxxyy}\) Pull out the pairs
2\(x^{2}\)y\(\sqrt{5x}\)
Helping in the name of Jesus.
what is an equal expression for 8(5m+5n-1) ?? Please and Thank you
Answers
Never mind i got it!
Answers
Answer:
OOk
Step-by-step explanation:
19. Which angle is a vertical angle to ∠UST ? A ∠VSW B ∠USV C ∠TSR D ∠WSR
Answers
Answer:
D. WSR
Explanation:
A vertical angle is also known as a vertically opposite angle refers to the pair of angles formed when two lines intersect one another. These pair of angles are congruent and are opposite one another
From the diagram and in the light of the explanation above, the vertical angle to UST is WSR
Therefore, option D is the answer
what digit 7 sits in this number 714,583
Answers
Answer:
Hundred thousands place.
Answer:
In this case the number 7 would be located in the hundreds of thousands.
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Thank you so much for participate in the community of Brainly.com
I hope help you :)
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jul used one bag of flour. She baked two loaves of bread. Then she used the remaining flour to make 48 muffins. How much flour was in the bag when Makenzie began? Use the chart to help you solve the problem.
Recipe
Amount of flour needed
Bread
2 ¼ cups per loaf
Muffins
3 ¼ cups per 24 muffins
Pizza
1 ½ cups per pie
Answers
Answer:
momdhwdjwbdjwbdjwbdjwbdjwbd a amamamamamamama
Step-by-step explanation:
High school students across the nation compete in a financial capability challenge each year by taking a National financial capability challenge Exam. Students who score in the top 6 percent are recognized publicly for their achievements by the Department of the Treasury. Assuming a normal distribution, how many standards deviations above the means does a student have to score to be publicly recognized?
Round the answer to 2 decimal places
Answers
A student needs to score 1.55 standard deviations above the mean to be publicly recognized
What is the z-score:The z-score, also known as the standard score, is a measure of how many standard deviations an observation or data point is above or below the mean of a distribution.
It is calculated by subtracting the mean from the observed value and then dividing the result by the standard deviation.
Here we have
Students who score in the top 6 percent are recognized publicly for their achievements by the Department of the Treasury.
To find the number of standard deviations above the mean, we need to use the z-score formula:
z = (x - μ) / σ
Where x is the student's score, μ is the mean score, and σ is the standard deviation.
Since the top 6% are recognized, we can assume that the cutoff score is at the 94th percentile, which corresponds to a z-score of 1.55 (using a standard normal distribution table or calculator).
Therefore,
A student needs to score 1.55 standard deviations above the mean to be publicly recognized
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Patricia visited a friend who lives 120 miles away. On her way there she averaged 60 mph. On the way back, she only averaged 40 mph. What was the total amount of time she spent driving?
Answers
Answer:
5 hours
Step-by-step explanation:
120/60= 2
120/40= 3
3+2=5
Tuan made a histogram to represent the distances students in his homeroom live from the school. Which statement is true? A. The data distribution is symmetric. B. The data distribution is skewed to the left. C. The data distribution is skewed to the right. D. The data distribution is both symmetric and skewed.
Answers
The data distribution is skewed to the right.
The data distribution is skewed to the right. The correct option is C.
A Histogram is called Right Skewed when the frequency of the data is more for the lower values and few in the upper-value cells.
Right Skewed Histogram is also called Positively skewed.
The data is observed from the image and it can be seen that
The frequency of students having less distance from the school is more and there are few students who live far from the school.
Therefore, the data distribution is skewed to the right. The correct option is C.
The missing data distribution is attached with the answer.
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Yesterday at baseball practice the guys decided to measure their throws. A smartie on
the team determined that the throw could be modeled by the equation,
h(t) = -16t² + 112t + 5, where h represents the height from the ground and t represents
the time in air.
a. What is the starting height of the ball?
b. How long is the ball in the air before it hits the ground?
c. What is the maximum height of the ball?
d. At what time will the maximum height occur?
e. Use your answers to graph the function.
Answers
Answer: c
Step-by-step explanation:
\(\\ x^{2} \sqrt{x} \sqrt[n]{x} \frac{x}{y} x_{123} \leq \geq \neq \pi \alpha \beta \left \{ {{y=2} \atop {x=2}} \right. \int\limits^a_b {x} \, dx \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]\)can you please help me with this question
Answers
Answer:
D
Step-by-step explanation:
4 * 20 = 80
Write the absolute value and the opposite values of the numbers listed in the table. 15,-93,56,-87
Answers
Answer:
initial value opposite value absolute value
15 -15 |15|
-93 93 |93|
56 -56 |56|
-87 87 |87|
Step-by-step explanation:
What is the product of the complex numbers (3 + i) and
(3 - i)?
Answers
Answer:
\left(3+i\right)y\left(3-i\right)=10y
Step-by-step explanation:
\left(3+i\right)y\left(3-i\right)
\left(3+i\right)\left(3-i\right)y
=y\cdot \:10
=10y
Pull out the GCF: 27x-81
Your answer
Answers
Answer:
the gcf is 27
27(x-3)
Step-by-step explanation:
In the figure, a square is inside another bigger square.
If a = 4 units and b = 3 units, the length of the diagonal of the outside square rounded to the nearest tenth is units and the length of the diagonal of the inside square rounded to the nearest tenth is units ? Can someone help ?
Answers
Answer:
c=5
Step-by-step explanation:
in right lower triangle
c²=a²+b²
c=√(4²+3²)=√25=5
sorry I don't understand it.which length of diagonal is needed to find.comment me.
The following box plot shows the typical gas mileage, in miles per gallon, for 20 different car models. Based on the box plot, the top 25 percent of the cars have a typical gas mileage of at least how many miles per gallon?
Answers
By using the box plot, the top 25 percent of the cars have a typical gas mileage of at least 30 miles per gallon.
To find the value of the typical gas mileage for the top 25 percent of cars, we need to look at the upper quartile (Q3) of the box plot. The upper quartile is the point that separates the highest 25 percent of the data from the lowest 75 percent.
In the box plot, the upper quartile (Q3) is represented by the top of the box (the horizontal line inside the box) and the vertical line extending from the top of the box (the "whisker" above the box). We can estimate the value of Q3 by looking at the scale on the vertical axis and reading off the approximate value at the top of the box and the end of the whisker.
Assuming the scale on the vertical axis is in miles per gallon, we can estimate that Q3 is around 30 miles per gallon. Therefore, we can conclude that the top 25 percent of the cars have a typical gas mileage of at least 30 miles per gallon.
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Please answer fast will give brainliest to accurate answer
Answers
Answer:
the answer is B y=-6x+C÷B
Answer:
B or the second one
Step-by-step explanation:
The way I did it, I got \(\frac{C-6x}{B}\).
See picture ~ 1.EThis table shows some values of thefunction f(x) = 1/4(3/2) ^xWhen the x-value changes by 1 unit, the function's valuechanges by. ?So f(x) demonstrates that exponential functions change by equal ? over equal intervals.
Answers
EXPLANATION :
f(x) has values of 1/6, 1/4, 3/8, 9/16, 27/32
As you notice, the next term is 3/2 of the previous term :
1/6 x 3/2 = 1/4
1/4 x 3/2 = 3/8
3/8 x 3/2 = 9/16
9/16 x 3/2 = 27/32
So we can say that the function's value changes by a factor of 3/2.
Then f(x) demonstrates that exponent functions change by equal ratios over equal intervals.
1 muffin costs 75 cents.
A bag of 4 muffins costs $2.40.
You need to buy 12 muffins.
Which is the cheaper option
Answers
Answer:12.45 is your answer
Step-by-step explanation:
Answer:
It would be cheaper to buy 3 bags of 4 muffins.
Step-by-step explanation:
\(2.40\) ÷ \(4 = 0.6\)
If I were to buy 1 muffin each, it would come to a unit cost of \(0.75\), hence the better option is to buy 3 bags of 4 muffins.