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April 20, 2014

Search: math average!

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math-average
What is SUM AVERAGE? The professor mentioned that the exam average was 58 [out of 100] and sum average was 144
Thursday, March 6, 2008 at 3:00pm by see

Math - average grade
I have a 82 average and got a 95 on a test what is my average now?
Wednesday, February 17, 2010 at 10:32am by Swagger Muffin

Math
What is the average of seven numbers if the average of the first two is 9 and the average of the last five is 15?
Saturday, September 19, 2009 at 7:56pm by Rebecca

math
The average of x and y is 5 and the average of x,y, and z is 8. What is the value of z? a. 19 b. 14 c. 13 D. 11 e. 3 I know that the average of 7 and 3 is 5 (if 7 and 3 are x and y) but I don't know what z is.
Tuesday, October 14, 2008 at 8:52pm by Mariah

Math
(Yes I did, but I'm back. Hey, it's Saturday!) Yes! Not that the _current_ average is .2857, just that the average of the new games that are added on is .2857. If Harry batted exactly .308 in the next 28, his average would stay the same, at .308. If he bats lower, the average ...
Saturday, October 17, 2009 at 10:09am by jim

math
The average of 2x and y is 47. The average of 2z and y is 31. What is the average of x, y, and z ?
Friday, September 20, 2013 at 4:40pm by Anonymous

Math
The total average must be 90. But Wilbur only has 88.5 average at this point. His average grade on the next two tests must be more than 90 for his overall average to be 90.
Wednesday, September 22, 2010 at 5:19pm by Ms. Sue

math
The average of 5 numbers is 28. What would the 6th number have to be to bring the average up to 30? Anne’s average in math is 92. She wants to raise her average to 93 so she will make an A. she is taking a test on Friday. What score will she have to make on the test to raise ...
Monday, March 14, 2011 at 4:54pm by katherine

Math
In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the four first tests is 88.5. What is the lowest average he could get on his next two tests and still ...
Wednesday, September 22, 2010 at 5:19pm by Katherine

Math
Forget his current average for a minute. Now, what batting average does 8 hits in 28 make? (Divide 8 by 28.) We don't know how that .308 was made up, but we know that if 8/28 is greater than .308, he's batting better than his past average, so the average will go up. Equally, ...
Saturday, October 17, 2009 at 10:09am by jim

Math
The word problem is: Nancy's quiz average is a 74. Her quiz average is 1/4 of her grade. The test average is 3/4 of the total grade. What test average does she need to get at least an 88? Would you be able to set up an equation, and explain how the answer was acheived? Thanks!!!
Wednesday, October 1, 2008 at 8:13pm by Coralia

Math
Period 1 has 15 students in it and a test average of 86%. Period 2 has 21 students in it and an average of 88%. Period 3 has 12 students in it and an average of 95%. Use weighted means to find the overall average of the classes.
Monday, January 26, 2009 at 12:29am by John

Math word gr 8
For the month of January, the average afternoon temperature in Calgard is 1/4 the average morning temperature. The average afternoon temperature is -4 C. What is teh average morning temperature? a.) If m represents the average morning temperature, what equation models this ...
Monday, January 26, 2009 at 8:19pm by Tyler

Math - average grade
I have a 90 average i just got a 50 on my mid-term what is my grade average?
Wednesday, February 17, 2010 at 10:32am by Virginia

math
Ale and AMK -- you're both wrong. $258.38 is the average weekly income. But the question asks for the average MONTHLY income. Multiply the average weekly income by 4.33 to find the average monthly income.
Monday, April 14, 2014 at 1:45pm by Ms. Sue

Pre Algebra
In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the first four tests is 88.5. What is the lowest average he could get on his next two tests and still ...
Thursday, October 17, 2013 at 8:58pm by Ry

math
A math teacher calculates grades as follows:Grade=[2 test averages+quiz average/3] After 3 tests and 2 quizzes your test average is 83 and your quiz average is 89. You took your fourth test today and noticed that your overall average grade has dropped to an 83. What was your ...
Sunday, October 24, 2010 at 4:29pm by Danica

Math
in other words it wants you to find the average which is average = add all sums /number of sums this is how you will get your average. average=157.60+182.09+175.15+166.27+162.04/5 =843.15/5 =168.63 so your answer is $168.63
Tuesday, June 26, 2012 at 10:15pm by Ajay

Math
What is the average births per day if the average birth per second is 4 1/5? What is the average deaths per hour if the average death per second is 1.7?
Tuesday, September 14, 2010 at 10:36pm by Jay

Math
Bama: 18.012 Average; + 0.012 Skippy: 17.962 Average; - 0.338 Jiff: 18.004 Average; + 0.004 Hytop: 18.002 Average; + 0.002 While Hytop's average is closest to 18, Jiff's weights are all within 0.1% of the advertised weight.
Friday, July 5, 2013 at 4:27pm by Ms. Sue

Math
The average of the first 4 numbers is 14. The average of the next 6 numbers is 25. What is the average of all 10 numbers. Can you explain how to calculate this please.
Thursday, January 21, 2010 at 10:35pm by Shelby

math
a. (40 + 36 + 8 + 6 + 2)/5 = ____ (It will not be an integer) b. If everybody's age increases by 5, so does the average c. Apply similar logic d. If everybody's age increases by N, so does the average Since we are dealing with a fractional average, the ages should have been ...
Wednesday, January 5, 2011 at 12:08am by drwls

Math
I assume the ball is thrown straight up, so the velocity only has 1 dimensional components. The average velocity is the same as the average slope over the given time period. m = (y1 - y2) / (x1 - x2) average V = [y(2) - y(2.5)] / (2 - 2.5)
Wednesday, January 6, 2010 at 8:24pm by Marth

Math
An instructor gives regular 20-point quizzes and 100-point exams in a mathematics course. Average scores for six students, given as ordered pairs (x,y) where x is the average quiz score and y is the average test score, are (18, 87), (10, 55), (19, 96), (16, 79), (13, 76), and...
Monday, March 7, 2011 at 1:47am by Re

english
1. He is of average height. 2. He is around average height. 3. He is a little below average height. 4. He is over average height. 5. He is of much more average height. 6. he is a little average in height. 7. He is more average in height. (Are they all grammatical?)
Wednesday, November 14, 2012 at 3:52pm by rfvv

math
Scott had an average of 83 on his first three exams. He later scored an average of 92 on the next six exams. What is his average for all nine exams. Round to the nearest tenth if necessary.
Tuesday, November 12, 2013 at 8:33pm by lynda

Calculating Average Atomicc Mass
the terms"average atomic mass is............ Average,and so is calculate different from a "normal" Average?
Saturday, September 8, 2007 at 11:57pm by asiya

calculus
is average rate of change and average value the same or will you get a different answer for each this is calculus so it's the mean average. it's using the formula and integrating. I dont understand your question, but I can assure you that average rate of change and average ...
Thursday, April 12, 2007 at 4:35pm by david

math
on the third weekly examination, the class average was 78. If the average had increased at the rate of p points perweek, the class average on the first examination was...
Saturday, September 10, 2011 at 3:15pm by Anonymous

math
If a person took a survey and there were scores 1-5 Poor=1 Fair =2 Average =3 Good =4 Excellent =5 The response was. (1) for average (6) for good (2) for excellent. 9 total questions... How do I figure out the average chosen score?
Friday, August 12, 2011 at 9:27am by KIm

Math
Julie owns a video store. Her monthlyexpenses, including rent, average $1,185. This year she made $34,620 in revenue. What is the difference between her average monthly revenue and her average monthly expenses? HELP
Friday, April 29, 2011 at 12:59am by Jojo

math
sonya's average in math class is an 84 after 3 tests. what must she get on the next test to raise her average to an 88?
Wednesday, February 20, 2013 at 9:13pm by lesi

math
finding the average in a a cosine graph. would the average be the the middle of the y-axis for the graph? for example, for y = cos x would the average be 0
Monday, September 5, 2011 at 4:31pm by Amy

Chemistry
Suppose you are computing an average for a number of type of masses. They might be isotopes in this case. A weighted average would take into account how much of each isotope is there. A "plain" average would just be an average mass for the various n types. (i.e., add them up ...
Sunday, September 30, 2007 at 10:20am by drwls

Chemistry
If tests are worth 90% & quizzes 10%. What is my average is my test average is a 83 & my quiz average is a 92?
Thursday, June 30, 2011 at 11:41am by Diane

Math
the average american drinks 29 more cokes per year than the average mexican. if together they consume 555 cokes per year how many cokes are consumed each year by the average american and how many by the average mexican? i also have to identify the constraints.
Thursday, October 31, 2013 at 12:48pm by Jason

Probability and statistics
5. The probabilities that the lifetime of a randomly chosen device is below average, average, above average are respectively 0.2, 0.5, and 0.3. The probability that the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals Choose one answer a. 0...
Friday, March 2, 2012 at 3:23am by Arun

math ( average)
a student wants to get an average of 80 on the 5 tests to earn an A grade.on the 4 test he gets 79, 88,64,78. how much should he score on the 5th test so that he gets this average of 80?
Thursday, October 18, 2007 at 9:01pm by sasha

math
If the average of 11 numbers are 20 and the average of 3 numbers are 48, what is the average of all the numbers.(
Thursday, December 16, 2010 at 8:19pm by Anonymous

statistics
Employees are evaluated as below average, average, or above average. What level of measurement is this? a. nominal b. ordinal c. interval d. ratio
Sunday, June 19, 2011 at 10:19am by Anonymous

math
mean median and mode are used to tell the average. mean is to basically find the average by compiling all the data together while median is simply put them in order from least to greatest and find the average.
Tuesday, December 15, 2009 at 9:09pm by need help

math
10 numbers have an average of 12 whereas 5 other numbers have an average of 36. find the average of the 15 numbers
Monday, October 28, 2013 at 6:08pm by kellyann

math
The average score on a reading test for 58 students was 87.3. Twelve more students took the test. The average of the 12 students was 90.7. What was the average for all students?
Wednesday, November 11, 2009 at 9:03pm by TSN

math
Anxious Billy Bob pulled out his math recording sheet and saw the following scores 54,62,65,68,70,70,78,82,84 A. He want to calculate his average.Which measure of center is the average?compute it ? I have this :The measure of center is the average, mean 633/9=70.33=about 70% B...
Saturday, April 19, 2014 at 9:15am by edu

math
If x and y are positive numbers and the average of 4, 20 and x is equal to the average of y and 16, then the ratio x: y is
Tuesday, January 18, 2011 at 8:56am by saqib

math - incomplete
How long is the average fry? How many fries in the average packet?
Tuesday, August 28, 2012 at 4:16pm by Steve

scientist
what is the therms " average atomic mass is a .............. average ,and so is calculated from a" normal " average?
Thursday, December 6, 2012 at 5:24pm by asiya

Math
Find an average height between the shortest and tallest trees. Multiply the average by 4. What do you get?
Tuesday, January 3, 2012 at 5:57pm by Ms. Sue

math
if my average is 88 percent. and if another grade is added, is it possible that my average would be the same
Monday, March 11, 2013 at 7:29pm by Angela

Math
Sarah has an 86% average on her 1st 5 tests. If she gets a 92 on her next test, what will her average be then?
Sunday, May 6, 2012 at 9:02pm by Bex

math
the average (arithmetic mean) of a and b is 6 and the average of a, b, c is 11. What is the value of c?
Tuesday, February 5, 2013 at 7:53pm by Oscar

math
the average mark of 10 tests is 76%.If the average mark of the first 7 tests was 73%,what is the average mark of the remaining 3 test
Saturday, November 24, 2012 at 9:39am by charlie

Microeconomics
When average total cost is declining then: a) marginal cost must be less than average cost b) marginal cost must be greater than average cost c) average toal cost must be greater than average fixed cost d) average variable cost must be declining. My answer is d but my friend ...
Thursday, January 26, 2012 at 1:52pm by Nicci

math
No, this average is not representative. Drop the 125,000 and figure the average using the other three numbers.
Monday, April 30, 2012 at 11:42am by Ms. Sue

Math
Yes but we need find the most effective choice so for the test scores I believe it's "mean". But for the average cost of a house and the average weight of a child I'm not sure which is the most effective. I'm guessing median for the average weight and mean for the average cost...
Tuesday, November 5, 2013 at 12:32pm by Anonymous

Math
Rae runds a mile 20 times. Her average time is 5.2 mins. She wants to drop her slowest time 5.8 mins and find the ew average. Write and equation to find are her new average running time
Monday, November 15, 2010 at 10:51pm by Abby

Probability and statistics
The probability that the life time of randomly chosen device is below average, average,above average are respectively 0.2,0.5,0.3. The probability that of the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals a.0.054,b.0.018,c.0.036,d.0.012
Thursday, March 1, 2012 at 12:30am by Arun

Math
From what the problem says, you need to add 1/4 of the quiz average to 3/4 of the unknown to get the total test average. I hope this helps. Thanks for asking.
Wednesday, October 1, 2008 at 8:13pm by PsyDAG

Math
8 divided by 28 is .2857. If the current average is .308 then the average would go down not up, right?
Saturday, October 17, 2009 at 10:09am by Anonymous

Math
Karen has an 86% average after 4 grades, what grade does she need to get in order to bringer average up to an 88%?
Sunday, November 27, 2011 at 2:36pm by Caitlyn

math
n-1 + n + n+1=? you know n. another way, if the middle is 3, that is the average n, so 3(average)= sum
Wednesday, September 1, 2010 at 12:50pm by bobpursley

MATH
since the average of the 35 juniors was 80, the total of their scores was 35x80 = 2800 the average of the 15 seniors was 70, so their total was 15x70 = 1050 total sum = 3850, so for the 50 students the average was 3850/50 or 77
Sunday, September 7, 2008 at 6:23pm by Reiny

Math?
Hola i need help with this problem I got all confused with the letters A,B,C,D and E are 5 numbers. The average of A,B,C, and E is 27. The average of B,C and D is 23. The average of B,C,D and E is 29. What is the average of these 5 numbers? A+B+C+D=_______________=______ B+C+D...
Saturday, December 9, 2006 at 7:56pm by Marisol Hernandez

Math #2
Sue's average for 9 games of bowling is 108. What is the lowest score she can receive for the tenth game to have an average of 110.
Monday, January 9, 2012 at 7:45pm by Linda

algebra
sonya's average in math class is an 84 after 3 tests. what must she get on the next test to raise her average to an 88?
Wednesday, February 20, 2013 at 9:27pm by cindy

math
50 students took a test. 24 recieved a better than average grade. What percent scored above the average?
Tuesday, February 25, 2014 at 8:53pm by mary d.

math
A professional baseball player has a battung average of 0.325 , express the players batting average as a fraction in simplest form.
Monday, April 7, 2014 at 7:43pm by anonymus

math
automoniles arrive at the drive-through windom at a post office at the rate of 4 every 10 minutes. the average service time is 2 minutes. the poisson distributimes are exponentially distributed. (A) what is the average time a car is in the system? (b) what is the average ...
Tuesday, June 7, 2011 at 8:10pm by mark

math
Vince's average bowling score for 5 games was 106. The average for the first two games was 102, and the average for the next two games was 108. What was the score of the 5th game?
Tuesday, August 13, 2013 at 4:45pm by Anonymous

Physic please help!
The change in B divided by the time (0.45 s), multiplied by the loop area in square meters, is the average voltage in the loop during the interval. The wire resistance is 2 pi R * 3.3 10-2 ohms(?)/m. Coumpute the average current (Vav/R) and multiply it by the average voltage, ...
Tuesday, October 9, 2007 at 6:32pm by drwls

Help math!!
15 students took a science test. the average score was 88.0. later in the day a sixteenth student took the same test and scored a 92. the teacher recalculated the class average using all 16 of the scares. by how much will the class average have increased? show your work.
Wednesday, April 10, 2013 at 6:37pm by kelly

math
15 students took a science test. the average score was 88.0. later in the day a sixteenth student took the same test and scored a 92. the teacher recalculated the class average using all 16 of the scares. by how much will the class average have increased? show your work.
Wednesday, April 10, 2013 at 6:16pm by carol

physics
What is the question? Do you want the average speed? The average velocity? The average speed is the distance traveled (in any direction)divided by the elapsed time. Let D be the distance between the points. 2D is the distance walked. 2D/V(average) = D/2.7 + D/4.5 D cancels out...
Friday, September 17, 2010 at 10:29am by drwls

Math
Average cost per gallon: (2.96 + 3.61)/2 = 3.29 Average gallons: 42.5 42.5 * 3.29 = ? average cost per month I assume your native language is not English.
Thursday, December 1, 2011 at 3:55pm by Ms. Sue

math
In his NPR radio program "A Prairie Home Companion," Garrison Keillor describes the mythical town of Lake Wobegon as a place where "all the women are strong, all the men are good-looking, and all the children are above average." The average (mean) score on a recent test given ...
Wednesday, July 18, 2007 at 11:35pm by kathy

physics
You do not really need calculus. Just use the AVERAGE velocity between the start and end times. between 0 and 2, the average is 1.5 for 2 seconds so displacement is 3 between 0 and 4, the average is 0 so displacement is zero between 4 and 4 the average is -1.5 so displacement ...
Sunday, September 9, 2012 at 6:00pm by Damon

math
mikes average on the first four exams in econ 1A is 88. what must he earn on the next exam to raise his overall average to 90
Tuesday, April 27, 2010 at 2:26am by chris

Math
The average of 7 numbers is 30. the average of the first to the fourth numbers is 32, the average of the third to the seventh numbers is 27. What is the sum of the third and the fourth numbers? I want the answer please.
Thursday, November 8, 2012 at 7:37am by Ryda

Physics
starting from your house, run 2oom east at an average speed of 4m/s, then turn around and run 280m west at an average spped of 7m/s to a post. 1) calculate Average velocity from house to post 2)average speed
Thursday, July 26, 2012 at 3:29pm by carak

MATH
THE AVERAGE WIND SPEED INCREASED 19 MILES/H FROM 8 AM TO 12 NOON. THE AVERAGE WIND SPEED DECREASED 5 MI MI/H FROM 12 NOON TO 4 PM. AT 4 PM, THE AVERAGE WIND SPEED WAS AT LEAST 32 MI/H. WHAT IS THE MINIMUM VALUE OF THE AVERAGE WIND SPEED AT 8 AM? NEED TO SOLVE AN INEQUALITY ...
Wednesday, November 30, 2011 at 12:46am by Justin

math
To obtain a final average of 80 % in a certain subject, what grade must a student earn in a test after having an average of 77.5 % in four examinations ?
Saturday, August 3, 2013 at 10:52am by vincent

science
What climate does this place have? Warmest month average: 83'F Coldest month average: 70'F Average rainfall: 42 in/yr Vegetation: Rainforest
Tuesday, August 31, 2010 at 8:31am by pam

physics
average velocity = 50m/156 s = 0.3205 m/s average force required = (1800 - 780)kg*9.81 m/s^2 = 10,006 N Power (average) = force x velocity = 3207 W = 4.3 horsepower The power will need to be higher during acceleration, and lower during deceleration, but 4.3 Hp is the average ...
Saturday, March 21, 2009 at 6:08am by drwls

math
average cost suppose that the daily cost "C" of manufacturing bicyclesis given by c(x)=80x+5000. Then the average cost "C" is given by 80x+5000/x. How many bicyclesmust be produced each day for the average cost to be no more than $100? I am not understanding this problem at ...
Thursday, April 18, 2013 at 9:18am by peggy

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Tuesday, May 8, 2012 at 1:15pm by toliver

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Wednesday, June 20, 2012 at 4:36pm by kime

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Tuesday, May 8, 2012 at 1:37pm by Anonymous

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Friday, March 1, 2013 at 3:49pm by Anonymous

Math
I'd say use the average of the averages. But, it depends on what you want. Not sure that a "team average" has any real meaning. Depends on how you define it. If you average the averages, it decreases the importance of hitters who have been up many times, as their score is just...
Thursday, April 10, 2014 at 7:44pm by Steve

math
The average (mean) of a and b is 10. The average of b and 10 is 1/2 of c. What is the average of a and c?
Sunday, May 16, 2010 at 6:51pm by joey

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Monday, April 14, 2014 at 3:39pm by math

Managerial ECON
a. What is marginal cost? b. What is average variable cost? c. How much output is been produced? d. What is average total cost? e. Is average variable cost increasing, constant, or decreasing? What about average total cost?
Saturday, April 5, 2008 at 9:34am by Anonymous

science
Whatclimate does this place have? Warmest month average: 83'F Coldest month average: 70'F Average rainfall: 42 in/yr Vegetation: Rainforest a) Temperate b) Tropical c) Cold d) Dry b
Tuesday, August 31, 2010 at 5:06am by pam

6th Grade Math
A mother duck has 5 ducklings. The average weight of the 5 ducklings is 6 ounces. If the average weight of three of the ducklings is 5.25 ounces, what is the average weight, in ounces, of the other 2 ducklings? Express your answer as a decimal to the nearest thousandth. Thanks
Tuesday, May 18, 2010 at 6:30pm by klk

calculus
1) For the average value of the SLOPE of f(x) in that interval, calculate Integral of f'(x) from 4 to 5. You have to divide by the interval to get the average, but that is 1. f'(x) = 2/sqrtx Average value = INTEGRAL 2 x^-1/2 dx from 4 to 5 = 4 (sqrt 5 - sqrt 4) = 0.9443 2) Now...
Thursday, November 12, 2009 at 1:31am by drwls

physics
No matter how the temperature is raised, the average kinetic energy is (3/2) k T, where k = Boltzmann constant = 1.38*10^-23 J/K Use that fact to compute the change in average KE per atom. It will be just (3/2)k(delta T) The number of moles will not affect the average.
Friday, April 10, 2009 at 8:35pm by drwls

math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Thursday, May 3, 2012 at 6:24pm by Anonymous

math
Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $3,000 for setup costs and $4.00 to administer each test. a. Write an expression that gives the cost(C) to test animals. b. you can find the ...
Sunday, May 1, 2011 at 12:57pm by lindsey

math
The midpoint has an x coordinate that is the average of XA and XB. That would be (-8-2)/2 = -5. The y coordinate is the average of YA and YB, and you can verify that is also satisfied.
Saturday, November 10, 2007 at 2:58am by drwls

math
If E represents a digit and the average of the two-digit numbers EE, 4E and E4 is 66, what is the average of 3E and E3 ?
Friday, September 20, 2013 at 4:56pm by Anonymous

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