# Homework Help: 1st Grade

**maTH**

PART A)find x using the ratio of the sides 12 cm and 16 cm: x/20=12/16. Show your work PART B) find x using the ratio of the sides 6 cm and 8 cm. Show your work PART C) Explain why the answers to a and b should be the same The triangles are 1st one x,12 cm, 6cm, the 2nd one is...

*Tuesday, December 15, 2015 by SHEILA LE BUFF*

**7th grade math**

electrical wire: $1.49 for 3 ft $.69 for 18 in which is a better buy?

*Tuesday, December 15, 2015 by Emmy*

**algebra**

I am the middle of 3 numbers whose total is 31. The largest is 3 more than 5 times the smallest. What # am I? 1st number I put as x 2nd number I put as y as long as y> x 3rd number is 3+5x=z X+y+z=31 so when I plug it in I get X+y+3+5x=31. Y=28-6x Now is where I get lost. ...

*Wednesday, December 9, 2015 by susan*

**Math**

I'm in sixth grade and I need help on 3(12w+8)+17+9w

*Tuesday, December 8, 2015 by bob*

**History**

7.)Why was the repeal of the judiciary the act of 1801 significant A.)It made crimes related to slavery enforceable by law B.)In the early 1800's what the usual reason for working class children to be separated from their family? C.)It was the first decision by the nation's ...

*Tuesday, December 8, 2015 by YRN DJ*

**History**

7.)Why was the repeal of the judiciary the act of 1801 significant A.)It made crimes related to slavery enforceable by law B.)In the early 1800's what the usual reason for working class children to be separated from their family? C.)It was the first decision by the nation's ...

*Friday, December 4, 2015 by YRN DJ*

**Math**

Fifteen Grade 2 children rode bicycle to school. Seventeen Grade 3 children rode bicycle to school. How many children in Grades 2and3 rode bicycles to school?

*Thursday, December 3, 2015 by Alex*

**Medical Billing and coding**

Can I retake a Quizz to help raise my grade?

*Thursday, November 26, 2015 by Melodee*

**Statistics**

The percent of fat calories that a person in America consumes each day is normally distributed with a mean of 36 and a standard deviation of about 10. Suppose that 16 individuals are randomly chosen for an experiment. A) Is it appropriate to use the normal approximation for ...

*Thursday, November 19, 2015 by Brandy*

**10th grade**

Ravi resigned----------illness

*Monday, November 16, 2015 by Anonymous*

**chemistry**

In many residential water systems, the aqueous Fe3+ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe3+ to Fe2+ and then titrating with MnO4- in acidic solution. Fe2+(aq) + MnO4-(aq) ? Mn2+(...

*Saturday, November 14, 2015 by Dalton*

**Grade 12 Chemistry**

5.85gof Naclis Dissolvedin250mlofsolution.Calculatethemass%ofsolute?

*Sunday, November 8, 2015 by Minibel*

**Math**

Am stuck A fifth grade class of 32 students is going on a field trip. They want to rent vans to drive to the field trip. Each van seats a maximum of 7 students. What is the least number of vans the fifth grade class must rent so that each student has a seat? If I times it that...

*Thursday, November 5, 2015 by iyana*

**Sixth grade math**

The sum is 1.7 and the product is 6.3. What are the numbers?

*Tuesday, November 3, 2015 by Kevin*

**9th grade**

32/4=b+4/3

*Monday, November 2, 2015 by Cole*

**Math**

A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in one month? (b) What ...

*Friday, October 30, 2015 by Anonymous*

**Math**

A utility company has the following rate schedule for natural gas usage in a city's business district: Monthly service charge $8.80 per therm service charge: 1st 25 therms: $0.6686/therm over 25 therms: $0.85870/therm (a) what is the charge for using 25 therms in one month? (b...

*Friday, October 30, 2015 by Jessica*

**11th grade math**

y^a/y^b

*Wednesday, October 28, 2015 by Claire*

**chemistry**

150 mL of a solution contiains .00015 M NaI, .0055 M NaC, and .12 M Na3PO4. A solution of .10 M AgNo3 is slowly added. Who precipitates 1st, 2nd, and 3rd? When the last one to precipitate just begins to precipitate, what % of the other 2 anions are still remaining in solution?

*Tuesday, October 27, 2015 by lisa*

**analytical chemistry**

150 mL of a solution contiains .00015 M NaI, .0055 M NaC, and .12 M Na3PO4. A solution of .10 M AgNo3 is slowly added. Who precipitates 1st, 2nd, and 3rd? When the last one to precipitate just begins to precipitate, what % of the other 2 anions are still remaining in solution?

*Tuesday, October 27, 2015 by TK*

**Grammar**

2.Brianna eats chocoloate whenever she gets poor grade in math. whenever she gets a poor grade in math is underlined. I believe this is a dependent clause. 3. After the house flooded, the family moved into a temporary shelter. After the house is flooded is underlined. I ...

*Thursday, October 15, 2015 by Patrick*

**5th Grade**

Where is the hundred thousandths place in 46.15398?

*Thursday, October 15, 2015 by Grace (The Puzzled Penguin)*

**Math**

a. Do some research and find a city that has experienced population growth. Determine its population on January 1st of a certain year. Write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential...

*Monday, October 12, 2015 by Cozy*

**Pre Calculas**

7. For the function defined by: f(x)= {x^2, x<=1} {2x+1, x>1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations algebraically...

*Tuesday, October 6, 2015 by Ryan*

**Pre Calculas**

Im really struggling and need help with this 1. One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write the equation of the linear function represented by the Table #1 x 2 5 8 11 14 17 20 y 1 3 7 13 21 31 43...

*Monday, October 5, 2015 by Ryan*

**algebra**

A 28-inch board is to be cut into three pieces so that the second piece is twicetwice as long as the first piece and the third piece is 44 times as long as the first piece. If x represents the length of the first piece, find the lengths of all three pieces 1st ...

*Sunday, October 4, 2015 by Anonymous*

**Math**

If I have a random stack of 5 quarters, the 1st 3 quarters are heads. What is the probability the the 4th quarter would be another head What is the probability the the 4th quarter would be a tail Is there a way to show the probability or odds that you would continue to keep ...

*Wednesday, September 23, 2015 by Jeff*

**Computer/Math**

In an examination five pass grade and one fail is awarded a. For mark between 70 and 100 b. For mark between 60 and 69 c. For mark between 50 and 59 d. For mark between 45 and 49 e. For mark between 40 and 44. Write a program to input an mark for a student and print the grade...

*Tuesday, September 22, 2015 by Tosin*

**Multimedia**

Not sure if you will get this right away.. but here is the question... Prompt the user for their name and then prompt the user for a number between 1 and 12. After getting the input, you will display the user’s name and then display the number with the appropriate month. (e....

*Sunday, September 13, 2015 by Nikki*

**3rd grade math**

explain how to compare 8,563 and 8,699

*Thursday, September 10, 2015 by debbie*

**Math 7th grade**

-0.5167 is this number rational or irrational ? Thank you

*Wednesday, September 9, 2015 by Holly*

**Algebra**

Students get two grades for a test in an introductory psychology course: a letter grade, and a numerical equivalent (weighted value). So an A is worth 4 points, a B is worth 3 points, a C is worth 2 points, a D is worth 1 point, and an F is worth 0 points. The results for the ...

*Wednesday, September 9, 2015 by Camry*

**4th Grade Math**

What does 5*6 mean?

*Tuesday, September 8, 2015 by Donna*

**life orientation grade 11**

social and environmental issues that cause ill - health

*Tuesday, September 1, 2015 by nokwanda*

**8th grade math**

I am in 8th grade math as a sixth grader. I am stuck on one problem. It is this: You are making a necklace that is 9 inches long. You use 6 beads for each inch. what integer is the change in your supply of beads after making the necklace?

*Monday, August 31, 2015 by Casey*

**Math: Mean, Median, Mode, Range & Finding the devi**

What is deviation? And what is the definition of frequency distribution & how would I solve a problem in 8th grade math with this problem...My child is asking about this problem she has in an 8th grade book. Given the following numbers 2,2,3,6,1,9,4,2,5,7,6,8,6, What is the ...

*Friday, August 21, 2015 by Aayla*

**Economics grade 12**

What's elasticity?

*Monday, August 17, 2015 by Sm*

**need help**

There are 205 students in the middle school. If 41 students are girls in 8th grade, what percent of the middle school do the girls in 8th grade represent?

*Tuesday, August 11, 2015 by Anonymous*

**9th grade math**

I need help with this problem please help with steps. -u+5u-2(6u-11)

*Monday, August 10, 2015 by Clarissa*

**Calculus**

My question is:Use L'Hospital's rule to find limit as x approaches 0 (e^x-e^-x-2x)/x-sinx. 1st I took the derivative to get (e^x-e^-x-2)/1+cosx. Substituting in 0, I got -1. The answer is supposed to be 2.I also tried (e^x-xe^-x-2)/1+cosx, and wound up with -(1/2). I think I ...

*Thursday, August 6, 2015 by Jessica*

**5th grade math**

what can be a word problem that can be represented by the equation 1) 1/4 + 3/4=? 2- 7/8=?

*Friday, July 31, 2015 by anonymous*

**Calculus**

So, I have a homework question on The Quotient Rule (taking derivitives) and I would like to know if I did it right. Calculate: y=(1/sqrt(x))-(1/(5th root of x^3). My 1st step was to change the sqrt to x^1/2, and the 5th root to x^1/5+^3. So then I got y=(1/x^1/2)-(1/x^16/5). ...

*Wednesday, July 15, 2015 by Jessica*

**English**

Posted by rfvv on Monday, July 13, 2015 at 9:33am. Lesson Plan .... Standards Addressed: General Goal9s): Specific Objectives: ...... ===================== In a leson plan, what is 'Standards Addressed'?•English - Writeacher, Monday, July 13, 2015 at 9:42am Standards are ...

*Tuesday, July 14, 2015 by rfvv*

**Strandfontein S.S.S.**

I would like to know some option of careers i can do with following subjects including to become an air hostess pls? My June 2015 results is as follow but my percentages were higher for 1st term and i dropped between 5% - 9% in all subjects English 71% Afrikaans 59% Life ...

*Saturday, July 11, 2015 by Cindy W*

**Chemistry**

When naming a molecular compound, such as CO, would I write it as mono carbon monoxide or carbon monoxide? My textbook has the rule written as prefix+1st element prefix+2nd element, but I am not sure if the mono applies to the carbon or not.

*Tuesday, July 7, 2015 by Jack*

**Chemistry Subatomic particles**

Fill in the chart (Numbers correspond to each other[I.E 1 in 1st group connects with 1in 2nd]) Subatomic particle found 1.Proton 2.Neutron 3.Electron Scientist 1.Rutherford 2.Chadwick 3.Thomson Experiment 1.Gold Foil Experiment? 2.? 3.Cathode Ray Tube Data Supporting Discovery...

*Monday, June 29, 2015 by Joey*

**precalculus**

If you are driving down a 10% grade, you will alway be 10% below where you would have been if you could have driven on flat ground from where you started. Suppose you descend to where you are 20 feet below your starting point. What concept does he "grade" relate to and how far...

*Saturday, June 6, 2015 by Lois*

**5th grade math**

What is he price of a hamburger and cheeseburger at this restaurant h+3c=$9.00 2h+c=$5.50

*Wednesday, June 3, 2015 by Mythreyee*

**5th grade math**

51 is 4 times the number of books, less 13

*Wednesday, May 27, 2015 by Mythreyee*

**5th grade math**

51 is 4 times of book is less 13

*Wednesday, May 27, 2015 by Mythreyee*

**5th grade math**

The sum of 6 and the product of 7 and a number is 75

*Wednesday, May 27, 2015 by Mythreyee*

**Algebra**

Is factoring equations a basic 9th grade skill?

*Friday, May 22, 2015 by Peach*

**math**

lilly made a 75 on her history test and an3 on her math test. the mean grade on the history test was 72 with a standard deviation of 5. the average grade on the math test was 81 with a standard deviation of 4. which test did lilly do better?

*Thursday, May 21, 2015 by debbie*

**math**

I have a question on my math that my teacher cant help me with because this one is for try it. Can you help me see if it is right?: It says: 12 . Wich is equal to 30 hundreths? A)3 thousandths B)3tenths C)3 tens D)3thousands I think the answer is B but, it really confuses me ...

*Thursday, May 7, 2015 by nicole*

**Math**

What is the 1st quartile of the following data set? 2745,257,301,218,265242,201 a-201 b-218 c-257 d-270 my answer would be 28 because 201 would be the minimum.

*Saturday, April 25, 2015 by Steve*

**English**

WORDS: Averse Detract Disdain Divulge Elation Endow Expulsion Mortified Nullified Ominous ------------- Some people are so (1)averse to living near a nuclear plant that they want the plant’s license to be (2)nullify. They say the plant infringes on every homeowner’s right ...

*Friday, April 24, 2015 by Sora*

**math**

Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83 and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test?

*Saturday, April 18, 2015 by Jay*

**Algebra (check my work?)**

1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra...

*Friday, April 17, 2015 by Ivy*

**connexus**

anybody go to flvs academy and is 8th grade

*Thursday, April 16, 2015 by Oscar*

**algebra**

what is the first step when solving x/15=3/5? write a proportion using an unknown value x and the ratio 5:6 then solve it. in an orchestra, the ratio of trombones to violas is 1 to 3. a. there are 9 violas. write a proportion that gives the number t of trombones in the ...

*Wednesday, April 15, 2015 by phan*

**1 st grade**

why does little red riding hood go for a walk in the woods?

*Tuesday, April 14, 2015 by jessica*

**Algebra 8th grade**

(y2-3y)

*Monday, April 13, 2015 by Sw*

**math**

The 1st,5th,13th term of an arithmetic sequence are the first 3 terms of geometric sequence with a common ratio of 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

*Thursday, April 9, 2015 by zack*

**Math**

Jeremy uses the linear function G=12h+50 to represent the grade, G (in points out of 100), that he can earn on an exam as a function of h, the number of hours he spends studying for the exam. 1.) Identify the slope and y-intercept of Jeremy's function and explain what they ...

*Thursday, April 9, 2015 by Hailey*

**finance**

You have a discount bond with a time to maturity of one year. The market price of this instrument is 97%. You want the model price to match it while you build you yield curve with ED futures; the contracts price as follows: 1st = 99, 2nd = 98, 4th =97. What is the price of the...

*Saturday, April 4, 2015 by sasi*

**Math**

Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 of the tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test...

*Thursday, March 26, 2015 by Bella*

**Maths lit**

Fraction for grade 10 assessment

*Wednesday, March 25, 2015 by Nokulunga*

**Chemistry**

How many milliliters of 0.258 M NiCl2 solution are needed to react completely with 20.0 mL of 0.153 M Na2CO3 solution? How many grams of NiCO3 will be formed? The reaction is Na2CO3(aq) +NiCl2 (aq)----> NiCO3(s)+2NaCl I solved for the 1st part, 11.8 M NiCl2 I am not sure ...

*Sunday, March 22, 2015 by Stacie*

**3rd grade math**

what is the standard form of 213

*Wednesday, March 18, 2015 by Anonymous*

**math**

Aisha invests twice the amount invested the previous month. If she invested $26.25 during the 1st month, how much did she invest during the 6th month?

*Wednesday, March 18, 2015 by jill*

**Physics**

A mass of 5Kg is 1st weighed on a balance at the top of a tower 20m high.The man is then suspended from a fine wire 20m long and reweivhed.find the difference in a weight ,assuming that the radius of the earth is 6400km,the mass of the earth is 6×10^24kg and G=6.673×-11 Nm^2...

*Friday, March 13, 2015 by Olushola*

**heat transfer**

can i ask u some question? about the heat transfer..1st question ,On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the room be warmer or cooler than the neighboring rooms? Why? Assume all the doors and...

*Sunday, March 8, 2015 by akalili*

**Math 6th grade**

Explain what a neutral field is.

*Wednesday, March 4, 2015 by Zero*

**6th grade math**

Use the scale 1/4 = 9 ft to represent a 27 ft square

*Wednesday, March 4, 2015 by Raegan*

**Math- Precalculus**

A utility company has the following rate schedule for natural gas usage in a city’s business district: Monthly service charge $8.80 Per therm service charge: 1st 25 therms : $0.6686/therm Over 25 therms: $0.85870/therm (a) What is the charge for using 25 therms in one month...

*Thursday, February 26, 2015 by Gina*

**math(5th grade)**

In the choir, 1/2 of the members are boys and 1/2 are girls. If 1/4 of the boys are5th graders what fraction of the whole choir is 5th grade boys?

*Thursday, February 26, 2015 by ary*

**algebra-6th grade**

what is a coefficient?

*Wednesday, February 25, 2015 by emporerpenguin*

**physics**

A ball dropped onto a floor from a height of 5m rises to a height of 2m after 3 bounces.What is the coefficient of restitution.? i know that e=(velocity of ball after 1st impact )/(velocity with which the ball strikes the floor).But will the no. of bounces effect the value of ...

*Sunday, February 22, 2015 by Anonymous*

**Social Studies/6th Grade Geography.**

"Why do most people live in the Western part of Columbia?" A - to enjoy the cooler climate of the mountains, B - to be closer with the boarder of Venezeula, C - to live along the Pacific coast, D - to benefit from the country's lush rainforests. I was trying to research ...

*Friday, February 20, 2015 by Mikayla.*

**Physics**

a BALL IS THROWN UPWARD WITH AN INITIAL VELOCITY OF 9.8 M/S FROM THE TOP OF A BUILDING. FILL A TABLE BELOW SHOWING THE BALLS POSITION,VELOCITY, and ACCELERATION AT THE END OF EACH OF THE 1ST 4SEC OF MOTION TIME(s) POSITION(M) VELOCITY(M/S) 1 2 3 4 Acceleration (M?S^2) Fill in ...

*Wednesday, February 11, 2015 by Tim*

**math**

the 1st branch produced 1 orange. the 2nd branch produced 2 oranges, the 3rd branch produced 4 oranges, the 4th branch produced 8 oranges and the 5th branch produced 16 oranges. how many oranges will the 10th branch produce?

*Tuesday, February 10, 2015 by beki dlamini*

**Vector Cross & Dot Product**

Given vector a=(2,1,0)and vector b=(-1,0,3) and vector c=(4,-1,1), calculate the following triple scalar and triple vector products. 1. c x a dot b What I did: c x a = ((-1)(0)-(1)(1), (1)(2)-(4)(0), (-1)(2)-(4)(1) =(-1, 2, -6) (cxa) dot b =(-1,2,-6) dot (-1,0,3) =(-1)(-1)+(2...

*Monday, February 9, 2015 by Annon*

**math**

A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85 60 70 0 75 80 80 80 ...

*Friday, February 6, 2015 by Jayden*

**Math**

In a group of 9 coins, one is fake and weighs slightly less. What is the fewest number of times you need to use a pan balance to find the counterfeit coins? (A pan balance is a scale used to measure weights, where weights are placed in two pans. The heaviest pan will go down ...

*Tuesday, February 3, 2015 by Erika*

**statistics**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.

*Friday, January 23, 2015 by kyle*

**math**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.

*Friday, January 23, 2015 by kyle*

**Math**

Sarah was trying to figure out her grades for her math course. she only knew the grade of 4 of the tests she had taken, However the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test...

*Wednesday, January 21, 2015 by JWL*

**grade 6 math**

13 more than product of m and 5

*Wednesday, January 21, 2015 by patty*

**Civics**

The 1st step in adding an amendment to the constitution is the amendment being? Sent to the state legislatures by the president Voted upon by the voters of the united states Proposed by a two-thirds vote of both houses of congress Passed by three - fourths of the sate ...

*Monday, January 19, 2015 by jeje*

**Math 7th grade**

1/15 =3/5m For my answer, I put m= 1/5 Is that correct?

*Wednesday, January 14, 2015 by Tam*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment

*Tuesday, January 6, 2015 by jeje*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment

*Tuesday, January 6, 2015 by jeje*

**Grade**

If there are 70 questions and you get an 80 how many did you miss

*Thursday, December 18, 2014 by M*

**math**

If Susan takes two tests and makes a makes a 54/100 on the first test and a 63/100 on the second test, and is given a third test and makes an 80/100(which can only count as 20% of her total grade for all three test, what is her final grade/score.

*Thursday, December 18, 2014 by destiny scott*

**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 by Alexis*

**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 by Jamie Fuler*

**sixth grade math**

what are the prime factorization of 88? I need help!

*Sunday, December 14, 2014 by jamar*

**Chemistry**

An archeological artifact was subjected to radiocarbon dating. The artifact showed a carbon-14 decay rate of 13.8 disintegrations/ min per gram of carbon. Carbon-14 has a half-life of 5715 years, and currently living organisms decay at the rate of 15.3 disintegrations/ min per...

*Friday, December 5, 2014 by Rachel*

**5th grade math**

how do i round and divide whith decimals?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

*Thursday, December 4, 2014 by caitlyn*

**5th grade math**

how do i simplify

*Thursday, December 4, 2014 by caitlyn*