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March 1, 2015

March 1, 2015

Post a New Question | Current Questions

**Math**

Last semester, a certain professor gave 36 As out of 390 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
*Tuesday, March 12, 2013 at 9:04pm*

**5th grade math**

bill is replacing the grass in his yard with cement .the yard is 300m long and 100m wide. if cement is 15cents per cm how much would it cost?
*Tuesday, March 12, 2013 at 7:23pm*

**3rd grade math**

1/3 2-fracture each third, what does it mean.
*Monday, March 11, 2013 at 8:07pm*

**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*

**statistics**

Last semester, a certain professor gave 23 As out of 279 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
*Sunday, March 10, 2013 at 11:13pm*

**Physics 11th grade**

1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s? 2) How much potential energy does Tim,with mass 60.0 kg, gain when he climbs a gymnasium rope a distance of 3.5 m? -Benchmark Review-
*Sunday, March 10, 2013 at 4:29pm*

**ENGLISH/MATH/SCIENCE HELP!**

Is there any websites for teens to read short stories (or long), then you answer ONLY multiple choice questions, grade you, and to have a profile or something to see all of your grades if your making progress each time (to see if your improving). I want to improve my reading ...
*Saturday, March 9, 2013 at 12:22pm*

**Lang. Arts**

4. Identify the appositive phrase in the following sentence. Mrs. Talavera, an eighth grade teacher at Rosewood Middle School, led the community meeting about childhood obesity. A.Mrs. Talavera B.an eighth grade teacher at Rosewood Middle School C.led the community meeting D....
*Saturday, March 9, 2013 at 10:48am*

**algebra**

Last semester, a certain professor gave 11 As out of 226 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
*Saturday, March 9, 2013 at 12:52am*

**5th grade math (word problems)**

I'm not sure how to solve the following problem. I don't think i have enough information. Ali deposited $120 in her savings account. This represents 75% of the money she received for her birthday. She pent the rest of her money on a lego toy. How much did the lego cost...
*Thursday, March 7, 2013 at 6:36pm*

**math**

suppose you won a contest at the start of 5th grade that deposited $3000 in an account that pays 5% annual interest compounded continuously. how much will you have in the account when you enter high school 4 years later? round to nearest dollar how much will be in the account ...
*Thursday, March 7, 2013 at 6:30pm*

**4th grade Algebra**

Evaluate the expression 15 - n when n= 9 I am not sure but is it 6?
*Thursday, March 7, 2013 at 4:02pm*

**math**

what is 31/3 simplified by idk(im in 5th grade)
*Wednesday, March 6, 2013 at 10:35pm*

**4th grade Algebra**

What is another way to write the expression 44n? What is another way to write the expression 44 divided by n?
*Wednesday, March 6, 2013 at 4:48pm*

**3rd grade math**

yolanda plays basketball in a youth league. each game is made up of 4 quarters, and each quarter is 8 minutes long. if yolanda plays every quarter during 7 games, how many minutes does she play in all.
*Tuesday, March 5, 2013 at 5:45pm*

**Math 6th grade**

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!
*Tuesday, March 5, 2013 at 3:33pm*

**Pre-Algebra**

Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on watching TV and homework?
*Tuesday, March 5, 2013 at 8:51am*

**Reading**

What is a 2nd grade pronoun definition
*Monday, March 4, 2013 at 8:59pm*

**Math 7th grade**

Katya bought 2 gallons of juice. she drank 2 quarts. how much was left?
*Sunday, March 3, 2013 at 9:09pm*

**Devry**

1. You are part of a team given the task of designing an application to determine a students letter grade for a short course. The application will process a quiz, a project, a midterm exam and a final exam to determine the total score. The result of dividing the total score by...
*Friday, March 1, 2013 at 1:42am*

**3rd grade**

Jan's parents gave her $12. each week after that they give her $5. how much money withh jan have at the end of four weeks? A. $20 B. $32 c. $28 D. 436
*Thursday, February 28, 2013 at 10:10pm*

**Writing**

2nd grade opinion pieces
*Thursday, February 28, 2013 at 9:44am*

**LA**

What are some tips to help me write better. I'm in 5th grade an i'm still writing run-ons.
*Thursday, February 28, 2013 at 7:34am*

**6th grade Algebra**

Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.
*Wednesday, February 27, 2013 at 12:16pm*

**4th grade grammar **

1. clean the campsite well or good 2. eat well or good
*Wednesday, February 27, 2013 at 9:28am*

**3rd grade**

you have 3 dimes. you need a quarter to use a public telephone. what can you do?
*Tuesday, February 26, 2013 at 3:51pm*

**3rd grade math**

one 10 is regrouped as 10 ones in each number. work backwards. write the number with 10 ones grouped as 1 ten again. 1.tens ones 5 15
*Tuesday, February 26, 2013 at 3:50pm*

**6th grade math**

n/4 +32=32 I can get it n/4=40 but not sure how to get n by itself????
*Tuesday, February 26, 2013 at 7:25am*

**6th grade math**

Unable to help my child with this problem... 71.33=9/5k-459.67 solving for k
*Monday, February 25, 2013 at 10:20pm*

**Math 6th grade**

I am having trouble with Input output for this problem, I can't figure out the function rule input x= output y= 2 1 3 0 4 -1 Please Help!
*Monday, February 25, 2013 at 9:51pm*

**phy**

A bicycle and its rider together has a mass of 62 kg. What power output of the rider is required to maintain a constant speed of 4.6 m/s (about 10.3 mph) up a 5.0% grade (a road that rises 5.0 m for every 100 m along the pavement)? Assume that frictional losses of energy are ...
*Monday, February 25, 2013 at 9:03pm*

**grade 9 english**

My question is about the story a midsummer nights dream, in act one 1. Why does helena wish her 'tongue should catch(hermia's) tongue's sweet melody'(189)
*Monday, February 25, 2013 at 10:35am*

**TOURISM GRADE 12**

influence of recent global event on tourism
*Sunday, February 24, 2013 at 6:30am*

**grade 11 math**

Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I dont have anyidea for this one please explain to me I appreciate your time thankyou sooo...
*Saturday, February 23, 2013 at 12:42pm*

**grade 11 math**

Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I dont have anyidea for this one please explain to me I appreciate your time thankyou sooo...
*Saturday, February 23, 2013 at 12:42pm*

**math**

What is a decimal for 21/33??? I really need help on this one!!!! I'm in fith grade so it's probably easy to help me!!! I also have a quiz tomorrow and I don't get decimals at all because I was out from school for 2 days because I was in the poconos. Thanks guys ...
*Wednesday, February 20, 2013 at 3:53pm*

**math **

In third grade... Write an equation comparing test scores of 88 and 97. (Use a box for missing number) do you know how to answer this?
*Tuesday, February 19, 2013 at 7:43pm*

**math **

In third grade... Write an equation comparing test scores of 88 and 97. (Use a box for missing number) do you know how to answer this?
*Tuesday, February 19, 2013 at 7:21pm*

**Statistics **

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of your total grade, each major test is worth 22.5...
*Tuesday, February 19, 2013 at 5:06pm*

**Math 6th grade**

Story Problem - Factoring An "A" train leaves a subway station every 13 minutes. An "E" train leaves evry 9 minutes. If both trains just left the station on parallel tracts, when will both leave the station together again?
*Tuesday, February 19, 2013 at 3:46pm*

**math **

1:how do you order 3/4 , 7/8 ,and 13/6 from least to greatest. 2:how do you convert 2 2/4 ito an improper fractin. 3:how do you convert 3% into a decimal and how do you convert 4.56 into a percent ... i am in 6th grade by the way and make sure you provide the answer
*Monday, February 18, 2013 at 4:50pm*

**Algebra**

Can you please give me some real life examples of using variables and solving equations. These are 6th grade students and I need to show real-life experiences. Thanks!
*Monday, February 18, 2013 at 9:59am*

**7th Grade Math**

I do know how to find the area of a square and rectangle, but how do you fing the area of a rhombus. (that is at least what it looks like.) The shape I'm talking about is like a rectangle but it looks like one side got stretched to the left. (sorry if I made that even more...
*Friday, February 15, 2013 at 2:42pm*

**3rd grade math**

A 16 wheler truck has 16 tires. The cab of a 16 wheeler has 6 tires. how many tires are on 11 truck cabs?
*Thursday, February 14, 2013 at 6:39pm*

**3rd grade math**

write greater than, lesser than, or equal: 25 cents --------------- 3/10 of a dollar.
*Thursday, February 14, 2013 at 6:35pm*

**7th grade math please help Ms. Sue ASAP**

14. Find the value of the missing angle. (It is a hexagon. In the picture, going counter-clockwise, the angles are: 152, 85, 125, 135, 85, and "x" degree angles) 720º 120º 128º 138º I need help finding "x"! So far, the angles they have ...
*Wednesday, February 13, 2013 at 9:19pm*

**science**

what is food vacuole and contractile vacuole 4th grade
*Wednesday, February 13, 2013 at 6:40pm*

**math 4th grade **

will those same steps work if the problem is x/12=2/6 will the answer be 4/12
*Tuesday, February 12, 2013 at 4:45pm*

**5th grade math**

adam read a 360 page book in 3 days. he read twice as many pages on the middle day as he did on the first day or last day. How many pages did he read on the LAST day.
*Tuesday, February 12, 2013 at 4:43pm*

**math 4th grade **

now is the correct answer 4
*Tuesday, February 12, 2013 at 4:34pm*

**PLEASE HELP 5th grade math**

There are 28 students in zacks class.one forth are absent how many students are present? Answer choises a.16 b.7 c.9 d.21
*Tuesday, February 12, 2013 at 4:32pm*

**math 4th grade **

So Alyonka will the correct answer be 10
*Tuesday, February 12, 2013 at 4:23pm*

**math 4th grade **

Find the missing number 2/5 = /20 could you explain the steps I take to find the answer
*Tuesday, February 12, 2013 at 4:16pm*

**7th Grade Math**

The area of a certain rectangle is 288yd^2.the perimeter is 68yd.if you double the lengths and widths,what will be the new area and perimeter of the new rectangle be?
*Monday, February 11, 2013 at 8:58pm*

**5ht grade math word problems**

sue baked chocolate chip cookies. although the recipe said it would make 5 dozen, she actually made 4 less than that. if there were slightly more than 500 chips in the package what is the average number of chips for each cookie?
*Monday, February 11, 2013 at 7:30pm*

**Physics Grade 11**

12kg box is placed on a rough surface. A force of 20N is applied at an angle of 30 degrees. Calculate the magnitude and direction of the normal and friction forces
*Sunday, February 10, 2013 at 2:51pm*

**Science (8th grade)**

I still am confused about the snail lab things... Ms. Sue helped me with the calculate, but I still have a question... Calculations: .136 cm/s .000136 m/s .4896 m/h Calculate how long it will take your snail to cross a sidewalk(2m) cross a road(20m). How would I do that?
*Sunday, February 10, 2013 at 11:59am*

**statistics**

the mean scale score on the mathematics examination of ninth grade students in new york state was 86 with a standard deviation of 5 points. Given a student was selected at random what is the probabilty that his score was 91 or higher?
*Saturday, February 9, 2013 at 3:43pm*

**stats**

suppose you are to form a scatterplot oby collecting data for the given pair of variables. determine the likely direction form and strngth. Student: high grade point average, student: studying consistency
*Saturday, February 9, 2013 at 1:36pm*

**3rd grade Math**

Explain It How can you suse a multiplication fact to find a division fact?
*Thursday, February 7, 2013 at 8:18pm*

**Algebra 2**

A teacher announces that exams count 20% of the 1st quarter's average. If a student has a 75 average, what must he get on his exam in order to bring his grade to at least to an 82?
*Thursday, February 7, 2013 at 7:04pm*

**Environmental Science 11th grade **

The process of separating 238-U to produce material containing a higher concentration.
*Thursday, February 7, 2013 at 12:35pm*

**Environmental Science 11th grade **

If half of a quantity of radioactive material decays in 10 years, in another 10 years?
*Thursday, February 7, 2013 at 12:34pm*

**Education/Technology**

In selecting software for the classroom, it is first necessary to ensure that A) the software features both text and colorful graphics. B) the software is at the correct grade level for your students. C) the software addresses diverse learning styles. D) the software is ...
*Thursday, February 7, 2013 at 12:21pm*

**Math grade 8 (algebra)**

The perimeter of the square is 2cm longer than the perimeter of the triangle.Write an equation for the perimeter of the square and then determine the length of each side of the square. Thank you in advance.
*Thursday, February 7, 2013 at 7:55am*

**7th grade math please help Ms. Sue **

4. Find the area for a triangle: base 14, height 5.5. (1 point) 19.5 cm² 77 cm² 38.5 cm² 770 cm² 5. Find the area of a parallelogram: base 5.2, height 2.3. (1 point) 10.6 cm² 12.96 cm² 5.98 cm² 11.96 cm² My answers: 4. 38.5 cm² 5. ...
*Wednesday, February 6, 2013 at 9:26pm*

**math 4th grade **

I donot under stand about decomposing these 7/9 and 4/10 please help
*Wednesday, February 6, 2013 at 9:23pm*

**math 4th grade **

Sue, we are trying to understand this ordering fractions from least to greatest, 1/2 3/4 4/6 . I don't understand about change the denominator to 12?
*Wednesday, February 6, 2013 at 9:21pm*

**math**

Can someone please show me how to estimate mixed numbers. An exsample like 6 and two thrids times 4 and one fifth. Also estimate by rounding to 0, 1/2, or 1. Exsample...5/8x9/10. I would appreciate any help I am in the 6th grade and me and math are not doing so well.....Thanks!
*Tuesday, February 5, 2013 at 11:40pm*

**5th grade math**

Alicia has 4 yards of ribbon. She needs 1/3 yard to make 1 bow .How many bows can Alicia make?
*Monday, February 4, 2013 at 11:55pm*

**5th grade math**

Tavon has 5 yards of ribbon. He needs 1/6 yard to make 1 bow. How many bows can Tavon make?
*Monday, February 4, 2013 at 10:36pm*

**5th grade math**

Alicia has 4 yards of ribbon. She needs 1/3 yard to make 1 bow .How many bows can Alicia make?
*Monday, February 4, 2013 at 10:29pm*

**5th grade math**

Joshua has 3 yards of ribbon. He needs 1/4 yard to make 1 bow. How many bows can Joshua make? Break down problem.
*Monday, February 4, 2013 at 10:23pm*

**math 5th grade**

A rectangle with a length of 4/9 foot and a width of 2 feet
*Monday, February 4, 2013 at 8:35pm*

**Math-grade 4**

what is the estimated quotient of 6 divided into 75?
*Monday, February 4, 2013 at 8:06pm*

**7th grade language arts Ms. Sue pleaselast queston**

3. Which of the following words shares the base word of "destination"? (1 point) destroy destiny destabilize destruction Is the answer "destiny"?
*Monday, February 4, 2013 at 6:43pm*

**Environmental Science 11th grade **

Discuss economic reasons that have caused many utilities to opt for coal-burning, rather than nuclear-powered, plants
*Monday, February 4, 2013 at 12:09pm*

**Environmental Science 11th grade **

What problems are associated with the long-term containment of nuclear?
*Monday, February 4, 2013 at 10:47am*

**8th grade science**

Good hypothesis for does the human tongue have definite areas for certain tastes
*Sunday, February 3, 2013 at 10:19am*

**math 4th grade**

adding and subtracting mixed numbers in lowest terms; 5 1/2 - 2 4/5, I got as far as 3 46/10 but don't know how to break it down into lowest term.
*Thursday, January 31, 2013 at 4:02pm*

**7th grade math**

what is the function of the following table: a tree that has a height of 12 feet will have a shadow of 10 feet
*Wednesday, January 30, 2013 at 7:31pm*

**Physics (As Level) 12 Grade**

2) An aircraft lands on a runway at a speed of 40 meters per second (ms^-1) and brakes to a halt in a distance of 860m. Calculate a) The Braking time. B) The deceleration of the aircraft.
*Wednesday, January 30, 2013 at 6:07pm*

**Math 6th grade**

What is the largest fraction that can be made out of these numbers? 4,7,9
*Wednesday, January 30, 2013 at 11:32am*

**Math (9th grade)**

Write an equation in point slope form of a line parallel to 12x-2y=6 and passes through the point (-4,-3)
*Tuesday, January 29, 2013 at 6:44pm*

**math**

How do you shade in .625 on a hundreds grid ( for fifth grade)
*Tuesday, January 29, 2013 at 5:36pm*

**5th grade math**

Using input output tables input 3 4 5 6 0 10. Output 9 16 25 36 0 100 what is the input output rule?
*Tuesday, January 29, 2013 at 7:47am*

**6th grade math**

I need help explaining ratios and proportions to my 6th grader
*Monday, January 28, 2013 at 10:12pm*

**5th grade math**

Make up a set of at least 12 numbers that has the following landmarks: Minimum: 50 Maximum: 57 Median: 54 Mode: 56
*Monday, January 28, 2013 at 9:03pm*

**3rd grade math**

kira's winter break lasted 10 days. it snowed on 6 of those days. write a fraction and an equivalent fraction to show what part of all the days it snowed.
*Monday, January 28, 2013 at 6:29pm*

**3rd grade math**

erins summer vacation lasted 100 days. she kept track of the number of rainy days. it rained on 30 days. write a fraction and an equivalent fraction to show what part of all the days it rained.
*Monday, January 28, 2013 at 6:20pm*

**6th grade math**

5ft 3 in. – 2ft 9 in. = ??
*Sunday, January 27, 2013 at 9:31pm*

**6th grade health**

the view you have of yourself is known as your
*Sunday, January 27, 2013 at 8:37am*

**Science 8th grade**

There are two clouds of material: one with widely spaced objects with small masses and one with closely packed objects with larger masses. What is more likely to form a solar system, the first or second? Use gravity to explain your answer.
*Friday, January 25, 2013 at 6:17pm*

**Math grade 12 Advanced Functions**

A company uses the function C(x)=20.50+2000, where C is the cost and x is the number of units it produces, to determine its daily costs. Find the inverse of the function and determine how many units are produced when the cost is $625,000.
*Friday, January 25, 2013 at 11:42am*

**math**

mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O
*Thursday, January 24, 2013 at 8:50pm*

**math**

mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O
*Thursday, January 24, 2013 at 8:50pm*

**math**

mark's fifth grade class received the following scores on their science test: 100,100,50,50,90,90,70,70,80,80.Wat is the mode on the grades of the science test? Whats the answer? o.O
*Thursday, January 24, 2013 at 8:49pm*

**science is hardddd!!!!**

Can I Have An Example Of A Closed System?? Please use easy words that I can understand, Im not that smart and i'm only in 7th grade. Also can you give me an example of an Open System?? Thank You.
*Thursday, January 24, 2013 at 7:48pm*

**4th grade word problems**

if tiles at a store cost .$20 for a 1"x1" square and $.30 for 1"X2" rectangle what would be the cheapest way to buy tiles to make a tiled square 3 inches on each side.
*Thursday, January 24, 2013 at 6:45pm*

**5th grade math word problems**

If 300 napkins cost $1.69 and 100 napkins cost $.89, what is the least expensive cost for 1010 napkins?
*Thursday, January 24, 2013 at 6:42pm*

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