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# Math: I need help with homework...

QUESTION POSTED AT 18/04/2020 - 07:44 PM

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QUESTION POSTED AT 02/06/2020 - 01:37 AM

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QUESTION POSTED AT 01/06/2020 - 04:18 PM

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QUESTION POSTED AT 01/06/2020 - 03:48 PM

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QUESTION POSTED AT 01/06/2020 - 02:03 PM

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QUESTION POSTED AT 01/06/2020 - 01:42 PM

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QUESTION POSTED AT 29/05/2020 - 05:20 PM

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QUESTION POSTED AT 29/05/2020 - 05:19 PM

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QUESTION POSTED AT 29/05/2020 - 03:01 PM

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QUESTION POSTED AT 29/05/2020 - 01:12 PM

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QUESTION POSTED AT 29/05/2020 - 12:48 PM

### In a Math contest consisting of 30 problems, Lydia was awarded 12 points for each correct answer, and 7 points were subtracted from her score for each wrong answer. No points were awarded or subtracted for problems not answered. How many correct answers did Lydia have if her score was 209?

QUESTION POSTED AT 29/05/2020 - 08:56 AM

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QUESTION POSTED AT 29/05/2020 - 08:44 AM

### I NEED HELP WITH A MATH QUESTION PLEASE???! There are 15 people in chorus. Each year the number of people increases 12%. There are 30 people in band and each year 2 new people join. Part A: Write the functions to represent the number of people in chorus and number of people in band throughout the years? Part B: How many people are in the chorus after 9 years? How many are in band in the same time?? Part C: After approximately how many years is the number of people in the chorus and number of people in the band the same?

QUESTION POSTED AT 29/05/2020 - 08:23 AM

### Help plz 30 pts who solve Using the following data, calculate the mean absolute deviation: 1 6 5 8 3 7 1 4 10 9 What is the mean absolute deviation for these data? 9 5.4 5 2.6 Question 5(Multiple Choice Worth 4 points) (08.02)Evan collected data about the amount of time each student in his math class spends studying. If the range of these data is 2, what does this reveal about the data? All the students in his math class spend exactly 2 hours studying. All the students in his math class spend an average of 2 hours studying. The smallest and largest data values are 2 units away from each other. The middle data value for time spent studying by all students in his class is 2 hours.

QUESTION POSTED AT 29/05/2020 - 08:04 AM

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QUESTION POSTED AT 29/05/2020 - 02:21 AM

### Jackie surveyed 50 students at her school and found that 0.64 of the students she surveyed said their favorite class is math. Another 24% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science? 12 20 32 40

QUESTION POSTED AT 29/05/2020 - 02:18 AM

### A math club had 4 members in its first year. It had 19 members in its fourth year and 29 members in its sixth year. Assuming a constant rate of increase, how many members will the math club have in its thirteenth year?

QUESTION POSTED AT 29/05/2020 - 02:15 AM

### The test scores of students in a math class are 46, 40, 50, 43, 35, 41, 50, 42, 38, and 48. What is the mean of this set of data?

QUESTION POSTED AT 29/05/2020 - 02:07 AM

### James believes the honor roll students at his school have an unfair advantage in being assigned to the math class they request. He asked 500 students at his school the following questions: "Are you on the honor roll?" and "Did you get the math class you requested?" The results are shown in the table below: Honor roll Not on honor roll Total Received math class requested 315 64 379 Did not get math class requested 41 80 121 Total 356 144 500 Help James determine if all students at his school have an equal opportunity to get the math class they requested. Show your work and explain your process for determining the fairness of the class assignment process.

QUESTION POSTED AT 28/05/2020 - 11:10 PM

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QUESTION POSTED AT 28/05/2020 - 10:14 PM

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QUESTION POSTED AT 28/05/2020 - 08:45 PM

### Tyrell recorded his science scores and his math scores. The measures of center and variation for each score are shown in the table below. Measures of Center and Variation for Tyrell’s Science and Math Scores Science Math Mean 78 80 Median 80 80 Mode 60 85 Range 40 15 Mean Absolute Deviation 14.4 4.0 Which inference can be made when analyzing the data in the table? There is more variation in the science scores. Tyrell prefers math over science. The mode is the best measure of the typical score for both science and math. The median for each subject is the same as the mean.

QUESTION POSTED AT 28/05/2020 - 08:15 PM

### Hi, can someone please help me understand this math problem? Personal salary is 47%, Helpers salary 25%, Gas 2%, Advertising 2%, Insurance 3%, Investments 4%, Taxes 4%, Miscellaneous 5%, Parts Supplies, 8% Thank you very much for your time :) 10. What percent of the contractor's income is spent on salaries? A. 76% B. 25% C. 47% D. 72%

QUESTION POSTED AT 28/05/2020 - 03:54 PM

### Jackie surveyed 50 students at her school and found that 0.64 of the students she surveyed said their favorite class is math. Another 24% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?

QUESTION POSTED AT 28/05/2020 - 03:53 PM

### Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. What is the problem with reporting results this way? loaded question voluntary response missing data correlation and causality

QUESTION POSTED AT 28/05/2020 - 03:34 PM

### Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 29 problems. Each problem is worth either 5 points or 2 points. Write a system of equations that can be used to find how many problems of each point value are on the test. Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points.

QUESTION POSTED AT 28/05/2020 - 02:34 PM