Saturday

December 3, 2016
**S.st**

What are the answer for number 3 and 4 in week 17 for 4th grade??..

*Thursday, May 12, 2016 by Chi*

**Simple College Question**

1.)Do you have to attend college in order to join the Army Or Navy? I truly don't know what I wanna be when I grow up so I've been thinking about join the Army Or Navy once I turn 19 or 18, & I was wondering Do I have to attend a college 1st before I can Join the Navy ...

*Wednesday, May 11, 2016 by #FreeGucci*

**5th grade math**

If y is less than twice x , and x is 15. What is y

*Thursday, May 5, 2016 by Kezia*

**math**

Grade 5 will plant 1/3 of the whole school garden. So far, they have planted ¼ of the whole school garden. What fraction of the school garden still needs to be planted by grade 5?

*Tuesday, May 3, 2016 by Drequan*

**Math college grade 12**

1=300(0.8)^t

*Monday, April 18, 2016 by Yineya*

**11th grade physics**

How do we know which plate has an excess of electrons?

*Tuesday, April 12, 2016 by angy*

**Chemistry**

When titrating 50.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the 1st equivalence point? I am confused... What H2A problem? Chemistry-Dr.Bob222 - DrBob222, Tuesday, April 12, 2016 at 1:49am Refer to the H2A problem above BUT you only...

*Tuesday, April 12, 2016 by Nevaeh*

**math**

in a school with 1500 students , one student returned from vacation with a contagious flu virus on 1st January. the spread of the virus through student body is given by y=1500/1+1499e^-0.85t where y is the total number of students infected after t days. the school would cancel...

*Sunday, April 10, 2016 by holy*

**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) ...

*Sunday, April 10, 2016 by Anonymous*

**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) ...

*Sunday, April 10, 2016 by Anonymous*

**Math**

There are 55 student in eight grade middle school that play different sports. 27 of them play soccer, 15 of them play basketball. 11 of them play soccer or basketball. What is the probability given that the they are in eight grade and play sports that they play both soccer and...

*Thursday, March 31, 2016 by Korbin*

**Math**

Do you have any 3rd grade math practice worksheets that I can use with my students? One of my students has a predicament of not doing his homework. Please implement your time and implementing a few practice worksheets for my students. Sincerely, Mrs. Raja 3rd grade teacher

*Tuesday, March 29, 2016 by Mrs. Raja*

**Math**

Shaahikala needs Rs.7000 after 15 weeks to send her daughter to school. She saved Rs.150 in the 1st week and raises by Rs.50 every succeeding week. Find whether she will be able to send her to school after 15 weeks? What value is created by the above situation in you? Pls ...

*Friday, March 18, 2016 by Megha*

**chemistry**

Hi, Can anyone suggest a protocol for preparing 1 Litre ammonical solution (pH 7.8, NH4-N, 3000 mg/L) from NH4Cl and NaOH? I have worked out that I need 10.7g NH4CL and 0.45 g NaOH -is this correct? I am assuming that 1st step is to prepare 0.45 g NaoH in 0.5 L distilled water...

*Thursday, March 17, 2016 by niko*

**Math**

Shaahikala needs Rs.7000 after 15 weeks to send her daughter to school. She saved Rs.150 in the 1st week and raises by Rs.50 every succeeding week. Find whether she will be able to send her to school after 15 weeks? What value is created by the above situation in you?

*Thursday, March 17, 2016 by Megha*

**Programming C++ using Data Structure.**

In an academic institution, Student has its records. Each student has his/her profile such as id number, student name. The institution also keeps records of student grades in each subject. Student grades contains information subject description, school year, semester, and ...

*Thursday, March 17, 2016 by Vonn*

**math**

a student’s grade in a class is simply the mean of five 100-point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student can earn on the ...

*Monday, March 14, 2016 by Debbie*

**Mathematics grade 9**

Calculate and compensate 823-273

*Sunday, March 6, 2016 by Kgahli*

**Algebra**

On January 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience a population ...

*Wednesday, March 2, 2016 by Kaai97*

**Geometry**

In the diagram to the left, ÚABC\angle ABCÚABCangle, A, B, C and ÚDCB\angle DCBÚDCBangle, D, C, B are right angles. Which of the following is closest to the length of DE‾\overline{DE} DE ...

*Tuesday, March 1, 2016 by Tyteana*

**10 grade literature **

Correct punctuation of , That is in my opinion depressing.

*Friday, February 26, 2016 by Debbie*

**Statistics**

The mean grade in this class last semester was 78.3, and the variance was 49 . The distribution of grades was unimodal and symmetrical. Using this information determine the probability that “Joe”, a random student you know nothing about, other than the fact that they...

*Thursday, February 25, 2016 by Francisco*

**Algebra**

A math class has 7 girls and 5 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys? Write ...

*Monday, February 22, 2016 by Anesha*

**Math **

A science class has 3 girls and 3 boys in the seventh grade and 4 girls and 1 boy in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys?

*Sunday, February 14, 2016 by Brooke*

**MS.SUE!**

this weekend can you help me with the second part of my grade recovery

*Thursday, February 11, 2016 by ashleydawolfy*

**science**

Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

*Thursday, February 11, 2016 by sanjay*

**science**

Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

*Wednesday, February 10, 2016 by sanjay*

**science**

Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be ..... A. 1:2 B. 2:1 C. 1:4 D. 4:1

*Wednesday, February 10, 2016 by sanjay*

**Math**

Find the intervals on which the function is increasing, decreasing, concave up, or concave down and find any local extreme values and inflection points. So I know how to do the above, but not with piece wise functions. Someone help me out? Y={3-x^2, x<0 and x^2+1, x>=0} ...

*Wednesday, February 3, 2016 by Beth*

**News for Ms. Sue**

1. A student raises her grade average from a 75 to a 90. What was the percent of increase in the student’s grade average? Round your answer to the nearest tenth of a percent, if necessary. A: 20% B: 16.7% C: 8.3% D: 15% Hi Ms. Sue, it was 20%. Thank you for your help, ...

*Tuesday, February 2, 2016 by Lizzie*

**maths**

the sum of the first nine terms of an arithmetic sequence 216. The 1st, 3rd and 7th terms form the first three terms of a geometric sequence therefore find the common difference

*Monday, February 1, 2016 by Anonymous*

**maths**

two numbers are in a gp,twice the product of the 1st two numbers is 9times more than the product of the last two numbers.if the product of all the number is 9.find the gp.

*Thursday, January 28, 2016 by adeyemi*

**math**

if the lecture grade is the mastering points worth 20% and exams worth 80%. what is the lecture grade? mastering points: 1513 exam grades: 92,83,76,95,95 thank you!

*Sunday, January 24, 2016 by lauren*

**math**

1st wall 5'long 8' wide 2nd wall 9'long 8'wide 3rd wall 2' long 4' wide tile size is 2'long 4'wide how many tile do I need

*Thursday, January 21, 2016 by Mike*

**Fourth grade math**

Is 1 pirme or composte

*Monday, January 18, 2016 by E*

**Modernist Poetry**

I want to write a modernist poem about struggles, future, stress. How everything I do in grade 12 will affect my future. The amount of pressure that is put onto me by my parents to get into university. I need a lot of help. I've always struggled with poems. I really need ...

*Tuesday, January 12, 2016 by Poemhelp-Please*

**Trig - 9th grade**

Can you help me solve: 5sin2x + 3sinx - 1 = 0 Thanks

*Sunday, January 10, 2016 by Carol*

**Math **

Repeat the following procedure for the four given numbers. Add 7 . Double the result. Subtract 4 . Divide by 2. Subtract the original selected number. The 1st number is 1 . The result is 5 . The 2nd number is 4 . The result is 5 . The 3rd number is 7 . The result is 5 . The ...

*Sunday, January 10, 2016 by Jeffrey *

**algebra**

A student's grade in a course is the average of 4 test grades and a final exam that is worth three times as much as each test. Suppose a student has test grades of 90, 88, 81, and 94. Write an equation to model this situation where x is the student's grade on the final...

*Friday, January 8, 2016 by kayla*

**7 Grade Math**

Melissa needs to subtract 10 5/8 from 12 6/8, what is her answer?

*Tuesday, January 5, 2016 by Anonymous*

**math**

in an arithmetic sequence whose first term is 4, the 1st, 3rd and 7th terms form consecutive terms of geometric sequence, find the sum of the first three terms of the arithmetic sequence

*Sunday, December 20, 2015 by selina*

**5th grade math**

The fifth-grade class at John Adams Middle School earned $428.81 at their school carnival. The money is being divided between 23 students to help pay for their class trip. How much money will each student receive? Round to the nearest hundredth. is it $18.60 ?

*Wednesday, December 16, 2015 by patricia*

**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 help*

**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*

**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*

**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...

*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...

*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*

**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*

**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) ...

*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...

*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 ...

*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...

*Sunday, September 13, 2015 by Nikki*

**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*

**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*

**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 ...

*Thursday, August 6, 2015 by Jessica*

**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 ...

*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 ...

*Saturday, June 6, 2015 by Lois*

**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*

**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 ...

*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*

**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*