Sunday

January 25, 2015

January 25, 2015

Post a New Question | Current Questions

**math question**

hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history course, the final grades were 8A'...
*Tuesday, August 29, 2006 at 3:17pm*

**math**

how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3/y - 3 ? and for this problem: x= 1/[(y^2+3y-5)^3] I got: y = y/x + 5/y - 3? However, I do not know how to solve for y explicitly. I don't think quadratic formula would work in these problems. Please ...
*Thursday, July 20, 2006 at 1:27pm*

**math 2nd grade**

Write a sentence using words that compares the crayons in the two boxes
*Sunday, January 25, 2015 at 9:33pm*

**math**

my sun in thea 1st grade me no understand to much english i need very much help what is 9+10=??? me having very hard time help asap
*Saturday, January 24, 2015 at 2:39pm*

**6th grade math**

how can i put fractions and decimals in greatest to least or least to greatest?
*Friday, January 23, 2015 at 1:22am*

**math**

how is GCF and LCM different? im in 4th grade and i tried to understand but my mum said shes not sure so please i need help
*Thursday, January 22, 2015 at 5:54pm*

**. 8th grade math **

. Mkay ! So, one molecule of nitrogen reacting w/3 molecules of hydrogen makes 2 of ammonia. How many molecules of nitrogen must react w/42 molecules of hydrogen to make 28,of ammonia?
*Wednesday, January 21, 2015 at 10:54pm*

**maths lit, history, geography, life sciences and L**

Am in grade 10 and those are the subjects i want to choose so can i become a psychologist with those subjects in the future??
*Wednesday, January 21, 2015 at 9:05am*

**Analytic chemistry**

A solution of HClO4 was standardized by dissolving 0.3745 g of primary standard grade HgO in a solution of KBr. The liberated OH- required 37.99 mL of the acid to be neutralized. Find the molarity(M) of HClO4. The given balanced chemical equation is: HgO + 4Br- + H20 ===> ...
*Wednesday, January 21, 2015 at 8:17am*

**Science- urgent-review**

what type of galaxy do astronomers consider to be the oldest? It's urgent because I am studying for a grade 9 exam but I dont know what this is.. please help.
*Tuesday, January 20, 2015 at 6:47pm*

**math**

James needs to bring his grade up to a B (80) in reading. What does he need to get on his next quiz? Quiz 1:77 Quiz 2:81 Quiz 3:74 Quiz 4:?
*Monday, January 19, 2015 at 9:50pm*

**grade 7 math**

Uniform Motion Related Problem Jessie has a 15 km head start on Melvin. How long will it take Melvin to catch Jessie if the latter travels at 70 kph and the former at 100 kph?
*Monday, January 19, 2015 at 11:57am*

**grade 7 math**

Uniform Motion Related Problem Two planes leave an airport at 2 p.m., one flying south at 450 kph, the other flying north at 675 kph. At what time will they be 3 600 apart?
*Monday, January 19, 2015 at 11:54am*

**grade 7 math**

Uniform Motion Related Problem Two cars starting from the same point travel in opposite directions. Car A travels at 80 kph and car B at 110 kph. After how many hours will the cars be 760 km apart?
*Monday, January 19, 2015 at 11:51am*

**grade 7 math**

Uniform Motion Related Problem Two cars, 210 km apart, met each other in 2 hours. If one car travelled at 60 kph, at what rate did the second car travel?
*Monday, January 19, 2015 at 11:48am*

**grade 7 math**

Uniform Motion Related Problem Chester drove his car at 8:00 a.m. at speed of 45 km/hr. At 9:15a.m. Michael followed with his car. What should be Michael's speed so as to be able to overtake Chester at 1:00 p.m.? How far has Chester travelled when Michael overtook him?
*Monday, January 19, 2015 at 11:46am*

**grade 7 math**

Uniform motion Related Problem Five boy scouts biked to Caliraya lake at 5 km/h. their scout master gave them a ride back home in his pickup car, at 20 kph. Find the hiking time if it 6 hors longer than their riding time.
*Monday, January 19, 2015 at 11:38am*

**7th grade math**

-2(3r+4)= -5r-8-r Answer I got r=r Question 2 14+8w=4(8+2w) I have 14=48. No solution
*Monday, January 19, 2015 at 10:30am*

**chemistry grade 11 **

which of the following has lowest vapour pressure ? 1 water 2 bromine 3 ethyl alcohol 4 ether
*Monday, January 19, 2015 at 7:15am*

**Maths lit Business studies Economics History**

im in grade 10 and i want to know what jobs can i do with these subjects
*Sunday, January 18, 2015 at 9:57am*

**math(5th grade)**

sixteen teams compete in a single elimination basketball tournament (one loss and you're out). How many games must be played to determine a champion?
*Friday, January 16, 2015 at 12:56am*

**5th grade science**

How might the history of the United states be different if the first European settlements had occurred on the west coast instead of the east coast
*Thursday, January 15, 2015 at 9:19pm*

**6TH GRADE MATH **

Write an equation you can use to find the length of the rectangle. area=72 m^2. 8m=length xm=width My equation is 8x=72 Am I correct?
*Thursday, January 15, 2015 at 9:10pm*

**math(5th grade)**

Garrett reads 2.8 pages in 3.5 minutes how much does Garrett read in 31.5 minutes
*Thursday, January 15, 2015 at 12:49am*

**Math 7th grade**

1/15 =3/5m For my answer, I put m= 1/5 Is that correct?
*Wednesday, January 14, 2015 at 5:17pm*

**5th grade math**

Julian wants to put a border around two sides of his rectangular shaped garden. he has a 12 foot piece of lumber that will be cut into 1/3 foot pieces. how many 1/3 foot pieces can Julian cut from the lumber? 12 divided by 1/3
*Tuesday, January 13, 2015 at 8:02pm*

**7th grade math honors**

The total cost for renting a kayak is represented as 25+5.50m. What is the constant in the expression 25+5.50m? Show work.
*Monday, January 12, 2015 at 5:47pm*

**8th Grade Geometry**

given that triangle ABC~ triangle XYZ, angle a=50, angle x=(2x+5y), angle z= (5x+y), and that angle b =(102-x), find angle z.
*Sunday, January 11, 2015 at 1:33pm*

**Chemistry grade 11**

An organic compound is composed of C, H and O. A 0.1005 g sample of this is combusted, producing 0.2829 g CO2 and 0.1159 g of H2O. What is the empirical formula of this compound? If the compound has a molar mass of 14 g/mol. What is the molecular formula?
*Saturday, January 10, 2015 at 6:58pm*

**math(5th grade)**

if an elephant's heart beats 25 time a minute, how many days does it take to beat a million times?
*Friday, January 9, 2015 at 12:38am*

**algebra**

Is there a site or someone who can help me, im not getting the basic algebra...I need someone or a web site that will help me understand the basics of algebra. PLZ HELP Im in 8th grade
*Thursday, January 8, 2015 at 6:44pm*

**sixth grade math**

Write a real-world situation that could be modeled by the equation 24/y=3. Then solve the problem. My answer: There are 24 seats available at the movies. There were total of 3 rows after the seats were divided and more seats on each row. Did I solve this problem correctly?
*Wednesday, January 7, 2015 at 9:40pm*

**8th grade math**

iPhone is designing a smart phone with a square screen. The area of the screen will be 169 cm with an exponent of 2. What is the height of the screen? I think the answer is 13. Am I correct.
*Wednesday, January 7, 2015 at 6:41pm*

**7th grade challenge math**

of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?
*Tuesday, January 6, 2015 at 7:36pm*

**Math**

Capacity Homework? I was doing my grade 8 math homework on capacity, and I was told to order the capacity of Vase A, B, and C from least to greatest. Vase C is a hourglass based prism, and I don't know the formula for it. Please help?
*Monday, January 5, 2015 at 4:49pm*

**5th grade Math**

Please help, what operation should I use to solve this problem? Jessica bought 10.50 pounds of potatoes. The potatoes are sold in sacks of 20 if the potatoes cost $1.99 per pound. How much money did Jessica spend?
*Wednesday, December 31, 2014 at 7:51am*

**6th grade math**

S 4 cups of cereal. The box states that one serving of cereal is equal ti 4/5 cup. How many servings did Sandra eat? Please explain and show work!
*Friday, December 26, 2014 at 1:22pm*

**6th grade Math**

What two expressions could be used to represent the cost of a speeding ticket on (1) streets and highways and (2) in construction and school zones?
*Monday, December 22, 2014 at 4:31pm*

**Grade 9th**

If 6.5g of zinc reacts with 5.0g of HCL,according to the reaction.Zn + 2HCL:zncl2+h2 Which substance is the limiting reaction? How many grams of the reactant remains unreactant? How many grams of hydrogen would be produce?
*Monday, December 22, 2014 at 3:12pm*

**Technology - grade 9**

Can someone tell me a brief summary on how to make an L.E.D light up when connected with only wires, nutes and bolts, battery and a paperclip.
*Thursday, December 18, 2014 at 7:36pm*

***repost* - Grade 11 math**

Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch the triangle).
*Wednesday, December 17, 2014 at 10:50pm*

**physics**

9th grade physics sketch a picture of the initial total velocity for the projectile when the angle is at 0 degrees, 30 degrees and 60 degrees. Resolve each into vertical and horizontal components. No velocity given
*Wednesday, December 17, 2014 at 10:09pm*

**Sixth Grade Math**

1. Write a phrase in words for each algebraic expression. A. "t - 29" Answer:29 minus t B. "a take away 16" Answer:16-a Write an algebraic expression with two variables and one constant. Answer: 150 + xy Did I answer the questions correctly?
*Wednesday, December 17, 2014 at 10:04pm*

**6th grade math**

what is the reason why we have an order of operations? Explain and provide an example.
*Wednesday, December 17, 2014 at 7:21pm*

**7th grade math**

Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x + 5 2. m - n + m - n - n = 2m - 3n 3. (7x + 5 - 3y) - (-3x - 5 +4y) = 7x + 3x -3y + 4y + 0 = 10x - y = 0 4. m/8 - 9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4
*Wednesday, December 17, 2014 at 7:38am*

**5th grade math**

rachel wants to reduce the size of her photo. Which factor listed below would scale down the size of her picture the most? A. 5/8 b. 11/16 c. 3/4 d. 8/5 trying to help my son with his math …have no idea about this.. could someone explain it to me?
*Tuesday, December 16, 2014 at 7:09pm*

**6th grade Math**

Define a variable. Then write each phrase as an algebraic expression. 1.Three more pancakes than his brother ate. explain why is this the answer
*Tuesday, December 16, 2014 at 6:14pm*

**MATH 4TH GRADE**

Teacher has 27 students. She asks the students to form as many groups of 4 as possible. How many students will not be in a group?
*Monday, December 15, 2014 at 7:14pm*

**division **

9/72=8 56/7=8 49/6=8 36/9=4 64/8=8 6/24=4 5/25=5 3/15=5 Easy I'm in fifth grade and I know this 😜
*Monday, December 15, 2014 at 3:58pm*

**sixth grade math**

what are the prime factorization of 88? I need help!
*Sunday, December 14, 2014 at 7:56pm*

**Sixth Grade Math**

Three different rectangles have an are of 28 square units. What are the possible whole-number dimensions of the rectangles? Can someone please help me how to solve this problem?
*Sunday, December 14, 2014 at 3:08pm*

**Sixth Grade Math**

Complete the following statement. As the value of n in the expression (1/4)^n increases, the value of the expression is? I need help with this question.
*Sunday, December 14, 2014 at 1:33pm*

**Sixth Grade Math**

To find the surface area of a box, add the areas of the faces: 2(lw) + 2(lh) +2(wh). What is the surface area of the box below? H=8m W=5m L =11m My answer is 366m.
*Sunday, December 14, 2014 at 1:30pm*

**grade 10 physics**

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
*Saturday, December 13, 2014 at 10:13am*

**Physics grade 10**

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
*Saturday, December 13, 2014 at 10:08am*

**Grade 9 Science**

why does a planet's orbital radius represents that planet's average distance from the sun and not its exact distance?
*Friday, December 12, 2014 at 9:50pm*

**Algebra 1 Ohio 8th grade standards**

Got a problem here. Can someone explain how to write an equation in slope intercept form for the line that passes through the point (4,2) and is perpendicular to the graph y=1/2x+1.
*Thursday, December 11, 2014 at 7:26pm*

**7th grade math**

Anna walked 8 miles in 3 hours. Juan walked 14 miles in 5 hours. Are these rates in proportion? 8/3 divided 3/3 = 2.66/1= 2.66 14/5 divided 5/5= 2.80/1= 2.80
*Thursday, December 11, 2014 at 6:14pm*

**grade 10**

guys I don't know what career i can do coz I chose math literary - business studies-geography- tourism so if you can help mi plz guyz
*Thursday, December 11, 2014 at 6:08pm*

**Science Help**

Drew is walking back up the best hill in the neighborhood 24* grade. He's pulling on the empty 2.1kg sled with a force of 18N at an angle of 55* with the hill. He's walking with a constant velocity, what is the coefficient of friction?
*Thursday, December 11, 2014 at 10:32am*

**6TH GRADE MATH**

Create a number line model that represents the equation below. -5 x -2 = 10 Can some help me please?
*Thursday, December 11, 2014 at 1:18am*

**Math 6th grade**

At lunch 3 1/4 small pizzas were equally devided into 4 people one person eats 1/4 of what he was given how much of a whole pizza did that person eat
*Wednesday, December 10, 2014 at 11:04pm*

**Sixth Grade Math**

Lian's dog is 456 millimeters tall. How many centimeters tall is Lian's dog? Is 4.56 centimeters the correct answer?
*Wednesday, December 10, 2014 at 9:39pm*

**Estimating sums and differnces of fractions**

Hello! My 10 year old daughter is having trouble understanding these preparation questions from her math teacher. I know the answer but I don't know how to explain it to her.. I'm sorry if that doesn't make any sense. When I was in 5th grade they taught us ...
*Wednesday, December 10, 2014 at 8:18pm*

**4th grade math**

can you convert 154 minutes to total hours in a week? I don't know how to convert
*Tuesday, December 9, 2014 at 8:46pm*

**math**

alan, gil, and deb's point in a video game was in the ratio 2:3:4.deb scored 114400 points. how many points did gill score? how many points did they score in all PLEASE HELP but can you make your answer so that I can understand I am in 6th grade but I am not the that smart...
*Tuesday, December 9, 2014 at 6:03pm*

**Health 4th grade**

When choosing a snack it is important to select a food that contains a large amount of these essential nutrients in comparison to the caloric value of the food. A.vitamins/nutrients B.vitamins/minerals C.vitamins/proteins D.vitamins/vegetables My answer:A
*Tuesday, December 9, 2014 at 1:08pm*

**math(5th grade)**

Gino wants to travel from home to school. Find how many routes are possible if he does not travel in a northerly direction.
*Tuesday, December 9, 2014 at 2:33am*

**Health 4th grade**

It is important to choose simple carbohydrates for breakfast to get you started for your day. True or False My answer: True
*Monday, December 8, 2014 at 6:03pm*

**Math Help**

1.Of the 80 eith-graders, 32 are going on the class retreat. What percent of the eith grade going on the retreat? A. 25% B. 55%*** C. 40% D. 32% 2.What is the sale price for a pair of shows that was originally prices at $54.99 and now is 20% off? A. $38.49 B. $41.24 C. $43.99...
*Monday, December 8, 2014 at 6:00pm*

** S.S 6th grade american revolution**

As a result of the first Continental Congress.. A) Colonists agreed to obey most of Britain's rule B) the declaration of right was created. C) king George agreed to go along with most of the colonist demand I think it letter b
*Thursday, December 4, 2014 at 3:58pm*

**S.S 6th grade american revolution**

Patrick Henry said, "I am not Virginian, i am an american" in order to ... A.persuade colonists to join forces B.express his anger at the south C.ask colonists to abolish slavery I think it C.
*Thursday, December 4, 2014 at 3:32pm*

**6th grade math**

the sum of twelve divided by twice a number
*Thursday, December 4, 2014 at 1:58pm*

**5th grade math **

how do i round and divide whith decimals?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
*Thursday, December 4, 2014 at 10:03am*

**5th grade math**

there is a gameboard and the arrow has landed on seven.what is the probability of spinning a number larger than 6 on the spinner?
*Thursday, December 4, 2014 at 10:00am*

**English 10th grade**

"I'd done a car for one of her patients, who told her about me." Which of the following describes the part, "who told her about me." A. nominal clause B. adjectival clause C. infinitive D. gerund phrase Is the answer, B, the adjectival clause describing...
*Wednesday, December 3, 2014 at 8:52pm*

**English 10th grade**

Which of the following correctly describes this sentence? It looms menacingly over the road from the roof of a farmhouse, a flying reptile with a seven-foot wingspan. A. Simple B. Complex C. compound D. compound-complex I felt it was a simple sentence.
*Wednesday, December 3, 2014 at 8:40pm*

**6th grade Math**

Abraham earns $11.50 an hour. How many hours will Abraham have to work to earn $483? Please Show Work!!!!
*Wednesday, December 3, 2014 at 4:58pm*

**6th grade english**

Question- These plants thrive in warm climates. My answer please tell me if i'm right- The verb is thrive- Is thrive a transitive or intransitive verb? I put intransitive, am i right?
*Monday, December 1, 2014 at 6:33pm*

**Sixth Grade Math**

A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours? My answer is 135 miles. Is my answer correct?
*Sunday, November 30, 2014 at 10:39pm*

**SIXTH GRADE MATH**

The staff of the Westpoint Public Library signed up 6 volunteers in the last 21 days. If the library staff continues to sign up volunteers at this rate, how many new volunteers will they get in the next 7-day week? 2 volunteers is my answer. Is my answer correct?. If not I ...
*Sunday, November 30, 2014 at 10:21am*

**SIXTH GRADE MATH**

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
*Sunday, November 30, 2014 at 10:07am*

**math**

how do you do 6th grade math cryptic quiz ?
*Saturday, November 29, 2014 at 1:35pm*

**SIXTH GRADE MATH**

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
*Saturday, November 29, 2014 at 12:08pm*

**8th grade math question..**

Lashonda found a recipe that makes 2 1/2 dozen cupcakes and requires 1/4 cup of vegetable oil. If she makes 90 cupcakes for a family reunion picnic, how much vegetable oil will she need?
*Thursday, November 27, 2014 at 12:34pm*

**Social Studies Grade 6**

Here are the instructions!(: Copy a symbol or an illustration to represent each item. Write a definition of each term in your own words. Write a sentence that includes the term and the words Mexico City. Thank you!(:
*Monday, November 24, 2014 at 4:10pm*

**Social Studies Grade 6**

What are the definition for rural decline, spatial inequality, standard of living, and urbanization. Please help me! Thank you a sixth grader Susie
*Monday, November 24, 2014 at 4:06pm*

**English Writeacher**

I want to thank you for advice and help in my English course. On my 9 page final I missed 7 questions, but what was so bad it was on complex and compound complex sentences my weakness I knew. I made 93 on final. I have a 96.83 grade average for course. Again Thank You for help...
*Saturday, November 22, 2014 at 6:10pm*

**MATH 6 GRADE**

The manager turns on the restaurant's two neon signs at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. In how many seconds will they blink together again? Explain how you got your answer. Need help please, thank you!
*Thursday, November 20, 2014 at 7:11pm*

**5 grade**

what does the statement (the properties of salts are different from the properties of the elements that go into making them) mean include an example in your answer.
*Thursday, November 20, 2014 at 4:54pm*

**5th grade science**

what does the statement "the properties of salts are different from the properties of the elements"mean.
*Thursday, November 20, 2014 at 4:51pm*

**9th grade math**

The depth of water(d metres) in a harbour is given by the formula d = a+bsin(ct) where a, b and c are constants, and t is the time in hours after midnight. It is known that both b and c are non-zero and 20<c<35. If t=midnight, d=5; if t=noon, d=5; if t=1300, d=7; and if...
*Thursday, November 20, 2014 at 1:02pm*

**6 grade science**

Which is not an example of stimulus A. the smell of baking bread B. the sound of your alarm clock in the morning C. the scream you give when someone scares you d.the light from the sun I think it is C. because the scream is the reaction to the stimuli, someone doing the ...
*Wednesday, November 19, 2014 at 9:53pm*

**5th grade math **

I'm helping my daughter with her homework and I'm trying too see if we are doing it correctly it says round to the neared tenth of a square kilometer Problem- 296.37 Her answer was 296.47 km My answer - 300.00 km Problem: 0.44 km Her answer was 44km Problem 60.87 km ...
*Wednesday, November 19, 2014 at 8:36pm*

**5th grade math **

Ms sue I'm sorry I'm totally confused its says round to the nearest tenth in a square kilometer How can I round 297.85 km to the nearest tenth? Her answer was 297.85 but I'm thinking it should have been 300.00 kilometer because the yes place is 5 or more
*Wednesday, November 19, 2014 at 8:23pm*

**5th grade math **

Round the area of each country to the nearest tenth of a square kilometer . Marshall Islands 181.30 My daughter put 181.30 because she said the number in tens place was 5 and under
*Wednesday, November 19, 2014 at 8:05pm*

**4th grade Math**

What is an expression that can be used to find 4 x 275 using mental math and properties of numbers?
*Tuesday, November 18, 2014 at 8:45pm*

**physics 9th grade **

What is the impulse that must be applied to stop a 90-kilogram running back on a field at a speed of 4.5 meters per second. (Hint:remember the relationship of impulse and change in momentum)
*Tuesday, November 18, 2014 at 4:54pm*

**5th grade math**

how many flowers do I have if...1/4 are pink...2/5 of remaining flowers are red...18 are yellow
*Tuesday, November 18, 2014 at 4:13pm*

**grade 10 **

What is an elegiac broadside? a large sheet of paper sold on the streets an elegant poem put to music a mournful, plaintive ballad a sensational disaster I don't have a clue what Elegiac means i was think it was a poem because that's what I'm studying . but can you...
*Tuesday, November 18, 2014 at 12:07pm*

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