Sunday

August 30, 2015
Total # Posts: 3,341

**Chem**

The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 0.020 mol of Demerol hydrochloride? I got 6.640g is this right?
*October 9, 2010*

**Chem**

Calculate the number of grams in 1.86 moles of K. I got 72.54g is this right?
*October 9, 2010*

**math**

This question makes no sense.
*October 9, 2010*

**algebra**

(1/2)/(5/8), change to percent. I think this is how you do it, hopefully someone will correct me if I'm wrong. Just a heads up that I'm not 100% positive on this one.
*October 9, 2010*

**algebra**

28.7-(.05*60)
*October 9, 2010*

**math**

Correct. Good job!
*October 9, 2010*

**English**

2. I would say I spoke with him yesterday is more formal.
*October 9, 2010*

**math**

3/5+4/5=7/5=1 2/5 x/3-y/3=x-y/3 7/a+2/a=9/a
*October 8, 2010*

**4th grade**

I think that's too hard for him considering he's in fourth grade... Ok, so you have three digits ___ ___ ___ They must add up to 5.. Since you know the tens digit is three times the ones digit and all of your digits must be low to add up to 5, the tens digit must be a ...
*October 8, 2010*

**algebra**

x-6=10 Add 6 to both sides. x=16
*October 8, 2010*

**math**

Multiples of 6 that are 2 digits: 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96..Now which one has it's tens digit as half of it's ones digit?
*October 8, 2010*

**Math 2nd grade**

49
*October 8, 2010*

**essay**

What do you need help with? Please post a specific question.
*October 8, 2010*

**math**

4.297*80=343.76 In standard notation, the decimal goes after the first digit and then you count how many places you moved the decimal and that's the exponent.. 3.4376 x 10^2
*October 8, 2010*

**English**

Everything looks good. The only thing I would change, if anything, is instead of "word cards", I'd just put "cards" because then you explain the cards.
*October 7, 2010*

**Math**

after 12y+36=36+12y.. the sides are both the same so y can equal anything
*October 7, 2010*

**Math**

4/60=___%
*October 7, 2010*

**Algebra**

4(x-2)=7(1+2x) 4x-8=7+14x Subtract 4x from both sides. -8=7+10x Subtract 7 from both sides. -15=10x Divide both sides by 10. -15/10=x Now reduce.
*October 7, 2010*

**physics**

Hi I have some graph problems I need help on. Sketch a graph of velocity vs. time. A cart is moving to the right on a horizontal surface while a constant net force of 3 newtons acts on it to the left. the force acting on the cart stops after a short period of time. At this ...
*October 7, 2010*

**physics**

ok so that means numbers 1 and 2 would be impossible, and I got for 4 that it could be possible if the object is getting heavier to pull. But for 3 I'm not sure. Thanks
*October 7, 2010*

**physics**

Hi I need help to figure out if these situations are possible or impossible thank you. constant velocity, non-zero net force constant speed, non-zero net force velocity to the left, net force to the right decreasing velocity, increasing magnitude of net force
*October 7, 2010*

**5th grade**

Didn't I solve one similar to this earlier for you? Try this one. If you maximum is 18, you know your minimum has to be 18-13=___. Then put the median in the middle. Make sure you have more 7's than any other number. Then fill in random numbers.
*October 7, 2010*

**math**

331+193 This depends on whether you're rounding to the nearest 10 or 100. If rounding to the nearest 10, 331 rounds to 330 and 193 rounds to 190, so then you'd do 330+190. If rounding to the nearest 100, 330 rounds to 300 and 190 rounds to 200, so then you'd do 300...
*October 7, 2010*

**Physics**

I have this problem about drawing graphs. For the following 6 situations, sketch a graph of velocity vs. time. A cart is moving to the right on a horizontal surface while a constant net force of 3 newtons acts on it to the left> The force acting on the cart stops after a ...
*October 7, 2010*

**Science**

if a piece of copper has a mass of 20g and a volume of 10mL giving a density of 2g/mL, what happens to the density when the piece of copper is cut in half?
*October 7, 2010*

**math 8th grade**

-r-10r=-11r (because -1-10=-11) n-4-9=n-13 (-4-9=-13) -4+7(1-3m)=-4+7-21m=3-21m
*October 7, 2010*

**8th grade**

The square would have to have each side 2y.
*October 7, 2010*

**5th grade math**

2 2 3 4 4 5 5 6 6 6 7 8 First fill in the max. You know it has to be 8. The range of 6 tells you the min has to be 2 (8-6=2). You can then fill that in. The median has to be 5 so 2 5's in the middle spot will ensure that it's 5. The mode has to be 6, so we need at ...
*October 6, 2010*

**Math 2nd grade **

A number cannot have greater than 7 tens and less than 8 tens. There is no number between 7 and 8.
*October 6, 2010*

**Intermediate Algebra (Math)**

You are good up until here.. -1.50x + 400 = 370 (this is correct) Then when you subtract 400 from both sides you get -1.50x=-30 Divide both sides by -1.5 x=20 lbs of pistachios, and 30 lbs of almonds
*October 6, 2010*

**Intermediate Algebra(Math)**

Your first row should be: 6.5x + 8(50-x) = 7.4(50)
*October 6, 2010*

**math 5th grade**

17a^2=2209 Divide 2209 by 17. Then take the square root of that number.
*October 6, 2010*

**algebra**

2, 6, 6, 10
*October 6, 2010*

**math**

The 7th square number is 49, so it has to be bigger than that.
*October 6, 2010*

**math**

It's bigger than 49, and it must be a multiple of 10 (since it doesn't end in a 5)..so your choices are 50, 60, 70, 80, 90, etc..Now check your other conditions and find your number.
*October 6, 2010*

**algebra**

10+5y=77 Subtract 10 from both sides. 5y=67 Divide both sides by 5. y=67/5
*October 6, 2010*

**Algebra-please check**

Correct. You could actually check these problems yourself by plugging in your answers.
*October 6, 2010*

**math**

There should be more information..if not, what are the directions?
*October 6, 2010*

**math**

Boil it?
*October 6, 2010*

**analogies**

There's 100 cents in a dollar, there's 100 ______ in a meter.
*October 6, 2010*

**math**

5x+5=30
*October 6, 2010*

**English**

Yes, they are correct.
*October 6, 2010*

**Algebra1**

8+n=1 Subtract 8 from both sides. n=-7
*October 6, 2010*

**algebra**

y+ab
*October 6, 2010*

**Algebra**

2x^2-3x-20=0 Use the quadratic formula.
*October 6, 2010*

**math.7th gradee.**

Parenthesis means to do that operation first. The order of parenthesis changes the problem. Did you learn order of operations? PEMDAS. Look at the difference between these problems. (4+3)*2=7*2=14 4+(3*2)=4+6=10
*October 5, 2010*

**algebra**

False. The 3 is multiplied by 2 to get 6, and the 4 is multiplied by 3 to get 12. In order for the statement to be true, they would both have to be multiplied by the same number. 3/4=6/8=9/12
*October 5, 2010*

**3rd grade**

You need to add 2 digits plus 2 digits of the lowest numbers. 12 + 34 = ?
*October 5, 2010*

**Math**

4 x 6 = 24, Laura. Sorry Lola, I can't figure it out either.
*October 5, 2010*

**Algebra**

9m+2m-8=5(m-2) 11m-8=5m-10 Subtract 5m from both sides. 6m-8=-10 Add 8 to both sides. 6m=-2 Divide both sides by 6 and reduce. m=-1/3
*October 5, 2010*

**8th grade**

Did you mean 3m=8? Divide both sides by 3 and get m=8/3.
*October 5, 2010*

**algebra) **

All you did was move around the paranthesis, so that's the associative property.
*October 5, 2010*

**math**

x+2y=10 3x+2y=18 Multiply the first equation by -1 to cancel the y's: -x-2y=-10 3x+2y=18 Now add the rows 2x=8 x=? Now plug that back into either original equation to solve for y.
*October 5, 2010*

**math**

(16+____) +(14-7)=18+22 16+____+7=40 23+____=40 ____=?
*October 5, 2010*

**math question. **

Yes.
*October 5, 2010*

**math**

-2x(-6)=12x
*October 5, 2010*

**english**

What elements? You forgot to list them.
*October 5, 2010*

**5th grade**

Round: 200/5=?
*October 5, 2010*

**Pre-Algebra**

Divide both sides by 4 to get x<-4
*October 5, 2010*

**math**

32 tens and 8 ones..now you think of one
*October 4, 2010*

**Spanish**

No, it's not right. What are you trying to say?
*October 4, 2010*

**algebra**

6000<x<10000
*October 3, 2010*

**math**

Correct.
*October 3, 2010*

**gammar**

I think they are both poorly written, but the second one is slightly better. The first one sounds as if an elementary school student wrote it.
*October 3, 2010*

**Algebra**

9.85 x 10^3
*October 3, 2010*

**algabra 2**

x+x-2+x+4=38 3x+2=38 3x=36 x=12 12, 10, 16
*October 3, 2010*

**philosophy of religion**

Explain thoroughly and elaborately what Martin Buber means by real atheism as the eclipse of God. - any help will do. i'm desperate. i'm having a hard time understanding this subject. you can just tell me what atheism is according to buber even not thoroughly and ...
*October 3, 2010*

**science**

Pangea.
*October 2, 2010*

**math**

5/2v-4=7/2v Subtract 5/2v from both sides. -4=v
*October 2, 2010*

**Organic Chemistry**

separation and purification scheme how would i begin this? we have a mixture of the following:50% benzoic acid, 40% benzoin, 10% dibromobenzene they give us 1M NaOH, 6M NaOH, 1M HCl, 6M HCl, 1M NaHCO3, saturated sodium chloride, diethyl ether, 95% ethanol, methanol, isopropyl ...
*October 1, 2010*

**EARTH science**

density=mass/volume
*October 1, 2010*

**7th grade**

5x-10=2x-7 Add 10 to both sides. 5x=2x+3 Subtract 2x from both sides. 3x=3 Divide both sides by 3. x=1 This way is the more common method although Emily did get the correct answer.
*October 1, 2010*

**algebra**

13, 14 are wrong..I'm not going to check anymore..If you need help (step by step) on one or two problems, please re-post. It seems that you are just guessing.
*October 1, 2010*

**algebra**

Welcome back, Whitney. I have to leave for work but I checked as many as I could. Hopefully someone else can check the rest or I can check the rest later. I checked up to 12. They are all right except 4, 6, 7, 12 (5 I'm not sure about).
*October 1, 2010*

**geometry**

Not enough information.
*September 30, 2010*

**Math**

__-__/__+__=50 Are you sure you have the number sentence right? You can't subtract any of those numbers and end up with that solution. You can do this though.. (50*2)/(10/5)=50
*September 30, 2010*

**math need asap**

-16y+5y=-11y, not -21y..I think that's your mistake
*September 30, 2010*

**algbra **

Need more information..
*September 30, 2010*

**second grade**

Definitely not 2nd grade..
*September 30, 2010*

**college algebra**

-14-(18-(-4) -14-(22)=?
*September 30, 2010*

**math**

3:7 red candy: total candy, etc.
*September 30, 2010*

**math**

3 x 5 =
*September 30, 2010*

**math**

(n+9)/3=14 Multiply both sides by 3. n+9=42..I'm sure you can finish from here.
*September 30, 2010*

**math**

Are you solving for x or y?
*September 30, 2010*

**Math, Please help :/**

30+.85n=2.25n I'm sure you know how to solve equations..
*September 30, 2010*

**math**

What three do you have?
*September 30, 2010*

**math**

A fraction cannot be simplified if it is already in lowest terms..there aren't any more reasons
*September 30, 2010*

**spanish**

ellos (them)
*September 30, 2010*

**proper nouns**

fill in blank with the correct proper noun 1.we finally decided to buy a _____________.(proper noun) 2. during ___________ there was very little to do around here.
*September 30, 2010*

**math**

41, 42, 43, 44, 45, 46, 47, 48, 49..which one fits both conditions?
*September 30, 2010*

**math 5th grade**

2 is a factor of both 20 and 30..can you think of anymore? I think there are two more.
*September 30, 2010*

**math 5th grade**

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100 These are the multiples of 4 up to 100. What number fits all of the conditions of your problem? (I actually think I see two that work..)
*September 30, 2010*

**vocab**

which make sense? 1. how can you expect to succeed at your new job when you are( diffused, predisposed) to believe that it is " not right" for you? 2. an economy in which the marketplace is considered "open" is one in which competition is more or less (...
*September 30, 2010*

**algebra**

Check your other post, already answered. Please don't repost.
*September 29, 2010*

**7th grade**

I just want to see a simple formula to solve linear equations
*September 29, 2010*

**7th grade**

This is a homework help website. You just post the subject, instead of grade, and ask a specific question. For example, if you don't understand how to do a math problem, post "math" for subject, and then post the problem.
*September 29, 2010*

**algebra**

I think you set it up like this..not positive though: 4(8n+6)=2(13n+2)+30n-28
*September 29, 2010*

**science**

Correct.
*September 29, 2010*

**math**

I'm sorry anonymous! You're right, I'm wrong.
*September 29, 2010*