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August 29, 2014

Homework Help: 3rd Grade

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physics
While standing on 3rd street you hear an approaching ambulance. Its siren oscillates in frequency between about 650 Hz and 750 Hz. Later on as you near your destination, you come upon the scene of the accident. The now-stationary ambulance runs its siren as it's about to ...
Saturday, October 6, 2012 at 6:48pm

physics
While standing on 3rd street you hear an approaching ambulance. Its siren oscillates in frequency between about 650 Hz and 750 Hz. Later on as you near your destination, you come upon the scene of the accident. The now-stationary ambulance runs its siren as it's about to ...
Saturday, October 6, 2012 at 6:47pm

Fifth grade English
What is the plural form of staff? Not sure if it should be staff or staffs. Thank you for helping. Britt
Friday, October 5, 2012 at 10:28pm

Math
A piece plywood 24 inches wide is cut into strips 2 and a half inches wide, how many strips of this with can be cut. Please help,7th grade.
Friday, October 5, 2012 at 12:12am

7th grade math question ms. sue
the area of a square boxing ring is 484^2. What is the perimeter of the boxing ring? Isn't the answer 121????
Thursday, October 4, 2012 at 9:29pm

Algebra Grade 7
Pentagon ABCDE ~ Pentagon FGHIJ. Find BC for GH =12, IJ = 15 and DE = 10
Thursday, October 4, 2012 at 7:57pm

Algebra Grade 7
What would be the scale factor if an airplane is 87 feet long; 2 inches = 15 feet
Thursday, October 4, 2012 at 3:38pm

7th grade math help
I need help figuring out the square roots of: 1/36 1/121 4/24
Wednesday, October 3, 2012 at 9:24pm

7th grade math help square roots
4. Wei-Min makes a square quilt that has an area of 100 square feet. It has 25 square blocks, each the same size. What is the length of each side of a block? 2 feet 4 feet 6 feet 10 feet What is the value of "x" if 25^2 = x? 125 0 625 5
Wednesday, October 3, 2012 at 9:21pm

7th grade math Ms. Sue
I still cannot figure this one out can you please tell me... 11/12 + (-2/3) = ? The answer choices are 1/4 13/12 -1/6 -7/12
Wednesday, October 3, 2012 at 8:58pm

7th grade fraction subtracting ms. sue help asap
10 5/18 – 8 5/6 (1 point) 2 5/9 2 13/18 1 4/9 1 11/18
Wednesday, October 3, 2012 at 8:41pm

7th grade math - can't figure this out!
A certain computer can perform 10^5 calculations per second. How many calculations can it perform in 10 seconds? I just cannot seem to solve this problem can somebody explain how to do this step by step?
Wednesday, October 3, 2012 at 8:11pm

7th grade math help asap please
1. -1/9 + (-5/7) = ? 2. 11/12 + (-2/3) = ? 3. What is the difference between an irrational number and an integer? 21. A length of ribbon is three and one-half yd long. How many pieces one and five-ninths yd long can Joy cut from the length of ribbon? (1 point) 1 2 3 4 How do ...
Wednesday, October 3, 2012 at 6:39pm

Math
There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?
Wednesday, October 3, 2012 at 6:07pm

Geography(Eighth Grade)
How did Europeans feel about Columbus's first voyages to america? Were they happy because they found new land or?
Wednesday, October 3, 2012 at 3:56pm

English 11th grade
Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. Please get to bed early since you have a test tomorrow.
Wednesday, October 3, 2012 at 9:35am

math 8th grade
10(square root400 - 15) 10(20-15) 10(5)= 50 would this be correct?
Tuesday, October 2, 2012 at 9:45pm

7th grade social studies
1. In 1300, the Holy Roman Empire included parts of all the following modern countries EXCEPT (1 point) Italy. France. Spain. Germany. My answer is 1. Germany Is this correct?
Tuesday, October 2, 2012 at 8:44pm

Ap world history, 10th grade
What was the most important "stepchild" of the Byzantine civilization? Poland, the middle east, Italy, or russia
Tuesday, October 2, 2012 at 7:08pm

Math
the average for a grade on a test taken by 20 students was 75. When one more student took the test the class average became a 76. What score did the student make?
Tuesday, October 2, 2012 at 6:51pm

hard 5th Grade Math
Two 5th grade classes raised money for their local animal shaelters.There are 20 students in Class A. Each student raised 12$. There are 26 students in Class B raised 1.5 times as much as each student in Class A. A. How much money was raised altogether in both classes? Show ...
Monday, October 1, 2012 at 9:46pm

6th grade math
how many hours dose it take for a rino to run 158,400 feet
Monday, October 1, 2012 at 9:01pm

7th grade math
I need help on these two questions because i have no clue what to say.... What caused the rise of the feudal system in Japan? More than 100 years after Akbar's death, the Mughal Empire began to fall apart. What were two of the reasons that caused this to happen? Thanks, -...
Monday, October 1, 2012 at 7:27pm

math 7th grade
so is it okay if you explain to me why we multiply first and then divide???
Monday, October 1, 2012 at 7:23pm

history
What are three good points to talk about in a research paper about child labor in the 1800s? 10th grade level please.
Monday, October 1, 2012 at 5:43pm

7th grade math
What is three-eighths written as a decimal? (1 point) 2.3 repeating 0.375 .3 repeating 2.667
Monday, October 1, 2012 at 5:37pm

MATH 4TH GRADE
THINK OF ALL THE WAYS TO BREAK 10 X 6?
Monday, October 1, 2012 at 5:27pm

7th grade math ms. sue please help
If Fran’s fudge recipe calls for 2 and 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use? a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 is the answer d because 2 1/2 plus 2/5 equals 2 9/10? If it is incorrect, then why? Thanks!
Monday, October 1, 2012 at 5:19pm

Pre-Algebra(7th Grade)
I dont know how to do area on a shape if it has missing numbers.. .also i need help on division with decimals...
Sunday, September 30, 2012 at 6:59pm

Math riddles for 4th grade
divide me by 10 and 3 remians. a square number my first digit be. My second digit is the product of1 and 3. All together I am greater than 50.
Saturday, September 29, 2012 at 5:03pm

Algebra grade 7
one day victor was riding in the car with his dad and saw a sign that read 500 km to Indianapolis. about how many hours did it take to get to Indianapolis if the car was traveling at 60 mph. 1 mi = 1.61 km
Saturday, September 29, 2012 at 5:01pm

Algebra grade 7
find a ratio equivalent to each ratio. then use the ratios to write a proportion 8/14 4/18.. I am so confused. Pleasse help me???? Thank ya'll.
Saturday, September 29, 2012 at 1:54pm

7th grade language arts
Choose the demonstrative pronoun is the following sentence: "This invitation fell out of her backpack." her of backpack this
Friday, September 28, 2012 at 9:08pm

Sociology/Psychology
I'm taking Sociology 1st semester and Psychology 2nd semester when I go to the 9th grade. I'm just curious but is there any topics (interesting ones) in Sociology and Psychology.
Friday, September 28, 2012 at 8:52pm

7th grade math standard form scientific notation
In standard form: 5. 3.2 x 10^3 7. 4.1 x 10^8 9. Write the average weight of a blue whale, 2.6 x 10^5, in standard form. 15. 2.5 x 10^-3 17. 1.05 x 10^-2 19. Write the size of a grain of very fine sand, about 9.35 x 10^-3 cm, in standard form. Can somebody help? I have been ...
Friday, September 28, 2012 at 7:05pm

7th grade math questions Scientific Notation
19. Write the size of a grain of very fine sand, about 9.35 x 10^-2 cm, in standard form. 31. The population of the US is expected to be 392 million people by 2050. Write this answer in scientific notation. 37. Write 10^29 - 10^28 in scientific notation. Thanks! -Delilah :)
Friday, September 28, 2012 at 6:55pm

7th grade math NASA problem
5. NASA's apollo program lasted nine years (1963-1972) and included 6 moon landings. Write the cost of the Apollo project, $25,000,000,000, in scientific notation. Is the answer 2.5 x 10^10????
Friday, September 28, 2012 at 6:52pm

7th grade math check my answers please quick
11. 17, 200 written in scientific notation is 1.7 x 10^5 21. 0.00105 written in scientific notation is 1.05 x 10^-3 are these correct?
Friday, September 28, 2012 at 6:32pm

7th grade scientific notation help Ms. Sue
Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502 12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009
Friday, September 28, 2012 at 6:05pm

10th Grade Literary Essay
What does F. Scott Fitzgerald suggest about the state of the American Dream, the people who pursue it, and the impact of that pursuit through his depiction of Jay Gatsby and the people in Gatsby’s life? Include specific examples, quotations, and supporting details from ...
Friday, September 28, 2012 at 1:17pm

sixth grade math
Which shape does not have two pairs of parallel sides? A. rectangle B. square C. parallelogram D. trapezoid
Friday, September 28, 2012 at 3:16am

math
not a Q but wanted to say tks for help last nite. I'm 9 & live w/ my two 10y/o nephews AND we are in the same 4th grade class. We needed help and we all wanted a chance to post on this awesome site, so tks a bunch for helping! Even though our papers were marked wrong on ...
Thursday, September 27, 2012 at 8:02pm

7th grade math - Scientific Notation basics
1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? 2. What is this number in standard form? 5.75 x 10^9 3. In a recent year the world production of wheat was about 5.2 x 10^8 metric tons. What is this number in standard notation?
Thursday, September 27, 2012 at 7:24pm

7th grade math - scientific notation help
12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009
Thursday, September 27, 2012 at 7:22pm

7th grade math help - quick, please.
Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502
Thursday, September 27, 2012 at 7:20pm

6th grade Math
I got a problem wrong and I don't know why. Here it is: A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minute. For how many seconds is the sign on in 5 minutes? I multiplied 0.88 x 5 and got 4.40 but it was marked wrong. What...
Thursday, September 27, 2012 at 7:02pm

6th grade math
Which shape does not have two pairs of parallel sides? A. rectangle B. square C. parallelogram D. trapezoid
Wednesday, September 26, 2012 at 11:11pm

math grade 10
A cube has a volume of 1280 cubic feet. Determine the edge length of the cube as a radical in simplest form.
Wednesday, September 26, 2012 at 6:46pm

6th grade math
in a pet store, 1/6 of the puppies are black and 1/4 are white. what fraction of the puppies are black or white?
Wednesday, September 26, 2012 at 9:54am

Physics. Please help. Thanks
in the last three years, Fred's basketball team won 30 more games than they lost. if they won 150 games, what was their ratio of wins to losses? What are three different ways to show the ratio? what is the unit rate if Ramon drives his car 180 miles in 3 hours? what is the...
Wednesday, September 26, 2012 at 2:50am

7th grade science
1) a classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. explain why this statement is incorrect. 2)why would granite have larger crystals than igneous rock s formed when lava cooled above the earth's surface?
Tuesday, September 25, 2012 at 11:00pm

math
5th grade math equations
Tuesday, September 25, 2012 at 9:05pm

Math I need help Ms. Sue please answer!
6th Grade Math: Write 144 as a product of prime factors. Then write the prime factorization using exponents.
Tuesday, September 25, 2012 at 6:01pm

Math
The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.
Monday, September 24, 2012 at 8:50pm

6th grade math
What is absolute value?
Sunday, September 23, 2012 at 10:21pm

7th Grade Science
Please help me with these questions. This is not homework. I am just trying to figure out some things that I need help with. When separating mixtures what is filtration? what is distillation? what is crystallization? what is chromatography? Thank you, sk8rgurl99
Friday, September 21, 2012 at 10:31pm

science
how to prepare 0.100M HCL solution when laboratory grade concentrated by hydrochloric acid has concentration of 37%.what volume of acid is necessary to prepare 500mL of 0.100M of HCL
Friday, September 21, 2012 at 9:57am

7th grade math
How do you arrange the numbers 2 4 5 and 6 ans insert the symbols "-" and "x" in a way that u follow PEMDAS/ order of operations to get the answer 8
Thursday, September 20, 2012 at 6:06pm

9th Grade Biology
Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?
Thursday, September 20, 2012 at 4:54pm

7th Grade Math
How do you identify whether a ratio is a rate??? Thank you for all help.
Thursday, September 20, 2012 at 9:18am

6th grade math
I had to convert 2500 millimeters to centimeters.I think it's 250,please check. Thanks!
Wednesday, September 19, 2012 at 6:45pm

Pre-Algebra 7th grade.
I have prealgebra with order of operations with a line dividor with a fraction line/divider. It says: 94-6 ____ 66(divided by) 6
Wednesday, September 19, 2012 at 6:20pm

Biology 9th grade
Describle the following cellular structures and functions?
Wednesday, September 19, 2012 at 6:15pm

math,social studies and health
Do you know any other websites where I can calculate my grade point average. Thanks.
Wednesday, September 19, 2012 at 5:00pm

Geometry 9th grade
One of two supplementary angles is 4 times the other. Find the larger angle.
Wednesday, September 19, 2012 at 4:17pm

Math
Explain how to draw a picture to find 3 x 0.9. Grandma needs help for her 5th grade granddaughter!
Wednesday, September 19, 2012 at 3:57pm

4th grade math
I have 5 ones and 19 hundredths. What number am I?
Monday, September 17, 2012 at 10:00pm

Math
How do i figure out this question? There are two roads, one has a grade of 20% the other has an elevation of 15 degrees. Which road would be steeper?
Sunday, September 16, 2012 at 10:09pm

6th grade science
What two parts of the earth system is a paleontologist involved in? Thanks
Sunday, September 16, 2012 at 8:58pm

6th grade science
Is latitude the up and down lines on a map?Or the side to side lines? Thanks
Sunday, September 16, 2012 at 8:47pm

6th grade science
What is porosity and permeability? Thanks
Sunday, September 16, 2012 at 8:26pm

6th grade science
What is a A topographic map used for? thanks
Sunday, September 16, 2012 at 8:20pm

6th grade science
A topographic map would be most useful for which activity? A. locating the name of the road where your friend lives B. finding out how much rainfall your town receives each year C. finding the highest point in your city D. determining what kind of soil is in a nearby park
Sunday, September 16, 2012 at 8:17pm

7th Grade Math
The perfect square is the square of a whole number. True or False I say false, right or wrong? Thank ya for your help. ☺♥☺
Saturday, September 15, 2012 at 5:14pm

6th grade history
Is San Diego and San Fransisco megalopolis?
Saturday, September 15, 2012 at 11:49am

6th grade math
entify if the problem shown below is an example of the commutative, associate or distributive property. Explain your answer. (2 + a) + 7 = 2 + (a + 7) thanks
Friday, September 14, 2012 at 6:53pm

6th grade math (please please answer!)
9 + x = 17 I know that x=8 but I don't know how you figure it out
Friday, September 14, 2012 at 6:35pm

6th grade math
What is base measurement? thanks
Friday, September 14, 2012 at 4:10pm

7th Grade Physics
Given a homogenous liquid mixture of sodium chloride (salt) and water, what would be the best method to separate these substances? What is the process. Please explain.
Friday, September 14, 2012 at 3:08am

5th grade English
What is the simple predicate in this sentence? The lion is nicknamed the King of the Beasts. Would it be "is" or would it be "is nicknamed"? Thanks!
Thursday, September 13, 2012 at 11:42pm

7th Grade Math
a nanosecond is 0.000000001 of a sec. what is the length as a power of 10. Please help me. Thank ya.
Thursday, September 13, 2012 at 10:18pm

5th grade math
The moon is about 240.000 miles from Earth. What is this distance written as a whole number multiplied by the power of ten?
Thursday, September 13, 2012 at 9:11pm

math
in a lunch room 36 fifth graders and 27 fourth graders are siting in equal groups. all the students in each group are in the same grade. what is the greatest number of students that can be in each group?
Thursday, September 13, 2012 at 6:31pm

7th Grade Science
Identify 5 characteristics common to plants and describe them?
Thursday, September 13, 2012 at 6:26pm

math
in a lunch room 36 fifth graders and 27 fourth graders are siting in equal groups. all the students in each group are in the same grade. what is the greatest number of students that can be in each group?
Thursday, September 13, 2012 at 6:25pm

Math
One road has a grade of 20% and the other has an elevation of 15 degrees. Which road would be steeper? How do i figure this out?
Thursday, September 13, 2012 at 4:47pm

math
A trucker is looking on a map of two roads he could take to get to Nelson. One has a grade of 20% and the other has an elevation of 15 degrees. Which road would be steeper? How do I figure this out?
Thursday, September 13, 2012 at 4:09pm

7th Grade Lit
We brought healthy snacks. What is the complement in the sentence? brought?
Thursday, September 13, 2012 at 12:02am

writing
who knows any 5th grade transition words?
Wednesday, September 12, 2012 at 11:48pm

10th Grade Math-Algebra 2
How do you multiply algebraic expression such as..... (5x^3)(4xy^2)
Wednesday, September 12, 2012 at 5:32pm

5th grade math
What missing number makes the number sentence, 28.02=20+8=?, true?
Tuesday, September 11, 2012 at 10:25pm

Math grade 7
The number 7 is a factor of 1001. explain how you know 1001 is a multiple of 7? How does knowing that 7 is a factor of 1001 help you to get another factor of 1001?
Monday, September 10, 2012 at 5:46pm

7th Grade Help
Influenza victims have fever, chills, muscular pain, prostration or all of the above? Isn't it all of the above?
Monday, September 10, 2012 at 4:44pm

STATISTICS
if the mean is 85 and the SD is 8 what percentage of students will receive a grade less than 58 and greater thAN 110
Sunday, September 9, 2012 at 9:32pm

math
mr. Rodriguez, a college instructor, can grade his class papers in 3 hours while it takes his assistant 4 1/2 hours.  If Mr. Rodriguez graded the papers for 1 hour and then left the job for his assistant to complete, how long will it take his assistant to finish grading ...
Sunday, September 9, 2012 at 6:26pm

5th grade reading
What is meant by: Make three tracks from what you've read today.
Sunday, September 9, 2012 at 11:18am

World history
Should the united states be a demoracy or monarchy? 7th grade
Saturday, September 8, 2012 at 2:56pm

2nd grade of math
Writing in math.Use counters.Tell how to make 10 when adding 8+5. and how it explain?
Saturday, September 8, 2012 at 1:52am

7th Grade Help
what is the largest cause of weathering and erosion? weathering water sand trees
Friday, September 7, 2012 at 4:36pm

7th Grade Science
Explain why increasing the temperature of a gas in a closed, rigid container causes the pressure in the container to increase.
Thursday, September 6, 2012 at 8:53pm

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