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Homework Help: 2nd Grade

math
on his first exam, he studied for 10 hours and went to tell the mall for 4hours, and got a score of 85. how long should he study to get a grade of 96 and go to the mall for 17 hours? grade varies directly with studying and inversely with going to the mall. is the answer 48hrs?

Math
Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

Math
18 people enter a race, if there are no ties, how many ways can 1st, 2nd and 3rd place result?

10th Grade Chemistry
I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?

MATHA
HOW TO WRITE 2ND JULY 2011 IN 5 LETTERS WITHOUT USING NUMBERS

English
Could you please check this sentence for me? I am interested in student writing exchanges but my students are in first grade. How old are first-grade students? (This is a real question)

social studies
how do we write 2nd june 2011 in five letters without using a number?

maths
How do U write 2nd june 2011 in 5 letters without using numbers...

math
if i had a 66 in bim and my teacher puts a 100 in the grade book what will be mi grade

math
Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 210 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

Good Reads? 6th and 7th grade
Please. I need a list of Non-fiction books recommended for 6th and 7th grade readers. Thank you and have a nice day. God bless! <3

8th grade science
What is the reprodution in bacteria, prokaryotic cells, called? A. Mitosis, B. Binary fission, C. Interphase, or D. Fusion. Thank you for helping! I need this because it's for my 9 weeks exam study guide which counts for a whole lot of my grade. Thanks!

Physical Science 2nd Semester
A student lifts a backpack with a force of 50 Newtons. She lifts the backpack 2 meters off the floor. Calculate the work that she has done.

maths
my daughter studying in 2nd standard this is the project work i don't understand, please show me the answer. make a chart to represent nos 1-15 using small objets

statistics
After years of data collection by college students, it has been determined that the distribution of course grades in Ms. Green’s Statistic II class follows a normal distribution with a mean of 62 and a standard deviation of 14. (a) A student will pass Ms. Green’s course if...

Chemistry
What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?

Physical Science
Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration calculation and velocity, time, ...

maths
how to write 2nd may 2011 in 5 letters without using numbers?

general knowledge
how to write 2nd may 2011 in 5 letters without using numbers?

PHYSICAL SCIENCE
compute the freezing point of 21.6 g CuSO4 in 1.00 x10 to the 2nd power gH2O

math
There are 283 students in Walley's school and 59 of them are in the sixth grade. What is the approximate percent of student at Walley's school who are in the sixth grade

math
Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.

math
Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.

double integral
1. Sketch the region of integration & reverse the order of integration. Double integral y dydz... 1st (top=1, bottom =0)... 2nd(inner) integral (top=cos(piex), bottom=(x-2)... 2. Evaluate the integral by reversing the order of integration. double integral sqrt(2+x^3) dxdy... ...

pre algebra
my grade is 83.17 in pre algebra in college, but the final exam is worth 300 points. If I got a B or B- or a C on the final, what would my grade be overall?

Science
The skydiver has fries and a milk shake. Whay is he so nervous? Because he is???????? 4 words total.. The 1st and 2nd are 2 letters. The 3rd and 4th are 3 letters. Using these letters to solve UTAHNIIEUR

6th grade science
What are Newton's three laws on motion in sixth grade lingo?

Physics
I'm trying to help my 7th grader with homework and I don't know this stuff. How do you figure word problems based on newton's 2nd law. one problem is: What is the acceleration of a ball if a force of 20N is applied to the 8kg ball?

Chemistry-help needed
Can we use an ACS/AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

physics
thanks for solving my question pasted on dated 18.02.2011 at 10.20.pm.2nd question. a wt lifter lifts a wt of one kg against force of gravity through a distance of .8 mtr. how much cals he will burnt from the food he had taken.

Calculus 2nd Post please help
Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

Chemistry-pls help
Can we use an AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

Chemistry-help needed
Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

pre- algebra
solve and simplify 6 to the 4th power * 6 to the 2nd power

5tth grade math
every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines.How many students are in the class.

math
Could someone please how this problem should be solved? Simplify and write the answer in exponential notation using positive exponents. 2 to the 4th x 2 -2nd power

math
On the 1st day the movie opened 35 people saw it. On the 2nd day 16 more people came than on the 1st day so that 86 people had seen the movie after the second day. On the 3rd day 67 people came, 16 more than on the 2nd day, If each day 16 more people saw the movie than the day...

algebra
A roof rises 1.4 feet vertically and 11.8 feet horizontally. What is the grade of the roof? The grade of the roof is _____% how do I begin to find the answer to this

third grade hw help
My third grade is needing help with his science homework please the question is as follow List as many resources as you can that you use during one day? Thanks!

math
A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5centimeters longer and 2 centimeters wider than the first. what are the dimensions of the original rectangle?

Money Sense
which do individuals usually hve more control over? How much they make or how much they spend? i think its 2nd one?

Math
i have to write this out in word form because it doesn't look rite when i use numbers... What is the value of X when Y=7? Problem: negative threeX to the 2nd power plus fourY minus one equals zero 2 -3x + 4y - 1 = 0

7th grade
Okay, so what are the axiom names? (honors math) Should this go in the 8th grade place? Oh well...

college math intermediate alg
4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .

college
4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .

Pre Calc
f(x,y)=ln(5x^2-7y^3) Find ALL 2nd derivatives. fxx,fxy,fyx,fyy

5th grade
how to do a double line graph with 2 superbowl teams scores with their mode median,and range for the first seven games. this is so hard for fifth grade. i need help

math
franklin school has 3 boys for every 4 4 girls in fifth grade . there were 140 students in the fifth grade. A.how many are boys B.how many are gorls

math
franklin school has 3 boys for every four girls in the fifth grade. there are 140 students in the fifth grade. a.how many are boys? b.how many are girls?

physics
A basketball is thrown with a velocity of 10.5 ft/s downward from a height of 6.8 ft. The coefficient of restitution between the ball and the floor is 0.65. How high does the basketball go after its 2nd bounce?

physics
A basketball is thrown with a velocity of 10.5 ft/s downward from a height of 6.8 ft. The coefficient of restitution between the ball and the floor is 0.65. How high does the basketball go after its 2nd bounce?

To drwls
I posted some Physics questions yesterday, but no one got the chance to look at them, so can u please go to 2nd page and look through them.

Statistics/2nd post
How is the p-value of a hypothesis test related to type I and type II error?

Computer Programing & Logic Design
Submit pseudocode and a flowchart for the following programming exercise: Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Design the following functions ...

5th grade
what are the answers to the 5th grade unit 1 test harcourt

Math
Hello, I have two more rational exponent question that I wanted to verify please: 4x^3y^-2 _________ 2x^-1y^4 = 2x^4y^6 is this correct? 2nd question: [w^1 / w^-3] my answer: = [w^(1)(-4)/ w ^ (-3)(-4)] = w^-4 / w^12 = w^12 / w^4 = w^3 / w Is this right?

5th grade
My daughter is taking OLSAT test for gift & talented middle school. All practice questions I find are for Kindergarten or 1st grade. Any ideas on how she should prepare? Thank you.

Chemistry
In calcium, the electron configuration is 2-8-8-2. Why does the 3rd level have more energy than the 2nd if they're both 8?

physics
A dinner plate drops and breaks. This best illustrates the ______ law of THERMODYNAMICS A. 1st b. 2nd c. 3rd d. 4th

Science
how do you find the degrees for a pie graph (ex) 1st 19 2nd 15 3rd 20 4th 15 5th 22 6th 15 ??? plz help!

Math
find the the 2nd derivative and set equal to zero in order to find inflection points of the function f(x)=1/(5x^2+4)

math
How do you find the rule of the sequence if the 2nd term is 40057.07 and the 5th term is 19192.53

english
I'm a 8th grade student and i need to write a Proffesional Business letter to My 7th grade english Teacher can you help?

Math
Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 to x-5 of square root of Sin(t)dt. Please help.

english grade 1
how to teach interrogative and relative pronoun to grade 1 students

3rd grade
Make a tally chart for the number of students in the third, fourth, and fifth grade classes: 26,25,27,27,26,28,27

MATH ALGEBRA (2ND TIME POSTING! ) Please Help!! :)
The Cost of installing new kitchen cabinets is $150 for delivery for all the cabinets and an additional $45 to install each cabinet. a) Develop a model to give the total cost for a set of n cabinets. b) What is the total cost for a set of 18 cabinets? c) Find the number of ...

math need asap
4x+5y=27 x=26-4y 4(26-4y) + 5y = 27 104 - 16y+ 5y = 27 -21y = - 77 21y = 77 y = 77/31 Now, I’m suppose to return to the 2nd equation x=26-4y and substitute 77/31 for x, I don’t understand if the is correct way or how to get the answer for the ordered pair.

physics
a car traveling at 7.0 m/s accelerates uniformly at 2.5 m/s to the 2nd power to reach a speed of 12.0 m/s. how long does it take for this acceleration to occur.?

physics
as the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s to the 2nd power as it slows from 9.0m/s to 0.0 m/s. find the time interval of acccelaration for the bus

6th grade
What is the simple and complex for this sentence. Making a bad grade on such an easy spelling test is such an embarrassment.

math
from a base elevation of 8600ft a mountain peak in Colorado rises to a summit elevation of 14660ft over a horizontal distance of 15838ft find the grade of the peak . the grade of the peak is ? %

6th grade science
I recently posted a 6th grade science question at 9:11 p.m. Can someone take a look at it for me. Thank you in advance!

Physics
A relay race is run along a straight line track 300.0 m long running south to north. 1st runner - starts at the South end of the track and passes the baton to a teammate at the north end of the track. 2nd runner - races back to the start line and passes the baton to a 3rd ...

algebra
how do you make a small 2 if if you were going to write to the 2nd power?

8th grade Math
I'm actually in 7th grade, but I'm doing 8th grade pre-algebra, but anyway, here: I'm supposed to simplify these four problems and I don't really understand how: 28s (15 power) ____ 42s (12 power) 4m+(n[7th power]m) 63m(5 power)n(6 power) ______________________ 27mn 3a·4a(4 ...

english
Could I get like a character essay outline? Like what I should have in my 1st, 2nd, 3rd, sentence, etc. How to start it off and flow towars the end? Thanks!

Advise
Ok, I am going to grade 12 and my university requires a 90% for advanced functions. In grade 11, I got a 78% with no tutoring. Is there who is willing to help me free of cost for tutoring or even websites that would help me.

latin
how do you do this? 2nd person, future perfect, plural of augeo, augere, auxi, auctus?

Language Arts
When I'm using 'grade' in a sentence, would it be capitalized? I.e. Jorge is in Grade 9? PS I'm Canadian, so maybe no US grammar rules?

Economics
Four roommates are planning to spend the weekend in their dorm room watching old movies, and they are debating how many to watch. Here is their willingness to pay for each film: film 1st. 2nd. 3rd. 4th. 5th

college
let i = the square root of -1 with i to the 1st power =i, i to the 2nd power= -1, i to the 3rd power =-i , i to the 4th power=1 find ito the power 215

chemistry, chemical kinetics
I keep getting these questions wrong, could someone please help. Thanks so much. Question 1 For the following overall reaction, the rate constant is 3.4x10^-2. A(g)+ 2B -> 2C + D What may be the rate reaction? Question 2 The rate law for this reaction is R=k[NO][Cl2] ...

Websites for Third Grade
Can you give me some websites to study for 3rd grade is these areas? Social Studies,English Language Arts, Math,Science

Natl. parks
Why are these national parks in Kenya considered tourist attractions? (Ruaha and Mt. Kilimanjaro) I should know why the 2nd park is an attraction. The mountain is well-known in Africa.

7th grade
I was wondering if there were any sample placement tests that I could give to my son who is currently in 7th grade homeschool.

science
descibe and explain 4 fates of a star ( after they die)? this is my 2nd last question to finish my worksheet and it is for marks please help me thanks

chemistry
calculate the percent composition or w/v% of 3x10 to the 2nd power mL solution containing 15g of glucose

Math
I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% ---------- 5% 100% ---------15% 95% --------- 15% 90% -----------5% 94.5% --------60% I multiplied the total grade by the percent, then ...

Statistics
I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% 5% 100% 15% 95% 15% 90% 5% 94.5% 60% I multiplied the total grade by the percent, then added the percent. But I get 109.20 as a final ...

statistics
Compare the two sets and describe what you see. 1st set: 57 61 57 57 58 57 61 2nd set: 61 52 69 64 46 54 47

7TH GRADE
HOW DO I STUDY BETTER? WHEN THERE ARE TO MANY DISTRACTIONS IN MY HOUSE. BECAUSE MY TEST GRADES ARE BAD AND THEY ARE PULLING DOWN MY AVERAGE GRADE

7th grade
HOW DO I STUDY BETTER? BECAUSE MY TEST GRADES ARE BAD, SO THEY ARE PULLING MY AVERAGE GRADE DOWN.

Food Chemistry
Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution. 1.) In the first step, If you plan to prepare a 2.00 M sodium acetate in 200.0 mL distilled water, how many grams of sodium acetate should be added in water? 2.) B. In the 2nd ...

Science Grade 8
I know that this seems like a REALLY EASY question, but for some reason I cannot think of anything! 2. What technologies have been developed that use light? This is from a grade 8 textbook, so nothing to technical!

Chemistry
Rank Na, Mg and K in order of increasing 2nd ionization energy a. Na < K < Mg b. Mg < K < Na c. K < Na < Mg d. K < Mg < Na e. Mg < Na < K

10th grade
i need an interesting topic for a tenth grade informative essay

math (find my grade)
1% of my grade 82% 4% of my grade 76% 2% of my grade 100% 100% 100% 100% 100% 100% 100% 100% 82% could you please find my average. thank you!!!!

grade 10 career studies
I have to hand in an assignment called WHO AM I? for my grade 10 career studies course, i just need to no what to hand in exactly

math
the graphs of the equation y = x to the 2nd and x = 2 intersect in A. 1point B. 2point C. 3point D.0point??

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