# Posts by Jen

Total # Posts: 3,525

**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.

**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 ...

**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

**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

**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.

**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...

**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 ...

**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?

**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

**8th grade**

The square would have to have each side 2y.

**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 ...

**Math 2nd grade**

A number cannot have greater than 7 tens and less than 8 tens. There is no number between 7 and 8.

**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

**Intermediate Algebra(Math)**

Your first row should be: 6.5x + 8(50-x) = 7.4(50)

**math 5th grade**

17a^2=2209 Divide 2209 by 17. Then take the square root of that number.

**Math**

5.

**algebra**

2, 6, 6, 10

**math**

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

**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.

**algebra**

10+5y=77 Subtract 10 from both sides. 5y=67 Divide both sides by 5. y=67/5

**Algebra-please check**

Correct. You could actually check these problems yourself by plugging in your answers.

**math**

There should be more information..if not, what are the directions?

**math**

Boil it?

**analogies**

There's 100 cents in a dollar, there's 100 ______ in a meter.

**math**

5x+5=30

**English**

Yes, they are correct.

**Algebra1**

8+n=1 Subtract 8 from both sides. n=-7

**algebra**

y+ab

**Algebra**

2x^2-3x-20=0 Use the quadratic formula.

**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

**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

**3rd grade**

You need to add 2 digits plus 2 digits of the lowest numbers. 12 + 34 = ?

**Math**

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

**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

**8th grade**

Did you mean 3m=8? Divide both sides by 3 and get m=8/3.

**algebra)**

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

**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.

**math**

(16+____) +(14-7)=18+22 16+____+7=40 23+____=40 ____=?

**math question.**

Yes.

**math**

-2x(-6)=12x

**english**

What elements? You forgot to list them.

**5th grade**

Round: 200/5=?

**Pre-Algebra**

Divide both sides by 4 to get x<-4

**math**

32 tens and 8 ones..now you think of one

**Spanish**

No, it's not right. What are you trying to say?

**algebra**

6000<x<10000

**math**

Correct.

**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.

**Algebra**

9.85 x 10^3

**algabra 2**

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

**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 ...

**science**

Pangea.

**math**

5/2v-4=7/2v Subtract 5/2v from both sides. -4=v

**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 ...

**EARTH science**

density=mass/volume

**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.

**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.

**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).

**geometry**

Not enough information.

**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

**math need asap**

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

**algbra**

Need more information..

**second grade**

Definitely not 2nd grade..

**college algebra**

-14-(18-(-4) -14-(22)=?

**math**

3:7 red candy: total candy, etc.

**math**

3 x 5 =

**math**

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

**math**

Are you solving for x or y?

**Math, Please help :/**

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

**math**

What three do you have?

**math**

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

**spanish**

ellos (them)

**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.

**math**

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

**math 5th grade**

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

**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..)

**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 (...

**algebra**

Check your other post, already answered. Please don't repost.

**7th grade**

I just want to see a simple formula to solve linear equations

**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.

**algebra**

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

**science**

Correct.

**math**

I'm sorry anonymous! You're right, I'm wrong.

**math**

10^3= 10000 Put the decimal after the 10 and move it over 3 places. Do the rest that way.

**Math**

I'm not sure, sorry.

**Math**

48? It appears that the x's are counting by 2's, and the y's are counting by 10's (starting at 8).

**algabra II**

No, we do not have nor would we give answers.

**Math**

It's not a multiple choice question, Bridgett, it's a multiple part question. Heather, I'll do part a for you and then you can do the rest the same way. You are just substituting into the equation. 3x^2+2x-3 (make sure this is right, I think you had a typo) a) x=-2...

**math**

Yup, Bridgett is right.

**math**

2.5 x 10^2=__x10^3 2.5 x 10^2= 250 .25 x 10^3=250 The exponent tells us how many places to move the decimal. If the exponent is positive, move it to the right. If the exponent is negative, move it to the left.

**science**

How does the pH of rainwater vary throughout the United States in Texas, California , Pennsylvania Kansas , Massachusetts and, Washington ? thank you

**math**

1, 2, 3, 4 to make 7 (4+3)x(2-1) 13 (4x3)+(2-1) 17 and 39, I can't think of..keep playing around with the numbers.

**Math**

Is this 3x+23=7x? Or is there a sign between the 7 and x? If it's 3x+23=7x.. 23=4x 23/4=x

**Algebra**

You just found out what they have in common. All of the terms have at least an x^2, so you can take that out. All of the numbers can be divided by 2, as well, so your GCF is 2x^2.

**Algebra help**

(x-1)^2=sqrt6^2 Take the square root of both sides. x-1=sqrt6.. you have to know how to finish from here

**MATH**

4.8

**5th grade math**

I'm pretty sure she meant 3142, 6328, & 4743.

**5th grade math**

The first step is to add those numbers up. Let me know what you get and I'll tell you what to do from there.

**algebra**

r+s=10 2r+4s=27 Multiply the first equation by -2 to cancel the r's. -2r-2s=-20 2r+4s=27 2s=7 s=3.5 Put s back into either original equation to solve for r (the first one would be easier).

**spanish**

What are the man and the children like in the painting? Who is the woman, and what relationship is between her and the girls. Write a description of the three people.