# Posts by Jen

Total # Posts: 3,506

**math**

x+4y=-16 (1) 3x+2y=12 (2) Multiply (1) by -3 to get the x's to cancel -3x-12y=48 (3) 3x+2y=12 (2) Now add (3) and (2) together. -10y=60 Divide by -10. y=-6 Substitude y=-6 into equation (1) or (2) to solve for x.

*November 5, 2010*

**agebra**

L=laser tag, V=video games 3L+5V=17 (1) 4L+7V=23 (2) Since the question asks only about the video games, we want to eliminate the L's. We can do this by multiplying the first equation by 4 and the second equation by -3. 12L+20V=68 (3) -12L-21V=-69 (4) Add 3 and 4 together...

*November 5, 2010*

**Math**

The digit is 6.

*November 5, 2010*

**math**

1, 3, 9, 27, 81, 243, 729, 2187 (you just had to multiply each number by 3 to get the next)..now add all of these numbers together

*November 5, 2010*

**8th grade**

Is just the 3 to the zero power or the 5-3?

*November 5, 2010*

**math**

Get out a calcutor and do 1/8, then move the decimal two places to the right and put a percent sign after that number.

*November 5, 2010*

**English: Vocab**

Definitely not! What are you trying to say?

*November 4, 2010*

**math**

.68 * 13 = 8.84

*November 4, 2010*

**math**

3x+4=5x-7 You want to get the x's on one side and numbers on the other. First, subtract 3x from both sides. 4=2x-7 Now add 7 to both sides. 11=2x Divide both sides by 2. 11/2=x 5 1/2=x

*November 4, 2010*

**english**

You are the one with the writing lab..we do not have access to that.

*November 4, 2010*

**algebra1**

y=mx+b

*November 4, 2010*

**Algebra1**

7 feet tall? Wow, he is tall. I would agree with Jay.

*November 4, 2010*

**math**

5 15/100=5 3/20..as a mixed number 103/20 (denominator stays the same, multiply the 5*20 then +3 to get 103)

*November 4, 2010*

**fractions word problems fifth gradee**

They are both right. The easiest way to do this is to make a proportion, though. 2.5/30=x/120, Cross multiply 30x=300, solve for x.

*November 4, 2010*

**math**

9+6=15, 10+5=15

*November 3, 2010*

**math**

2.9166667 is not the same as 2 1/2. 2 1/2 would be 2.5. You could say 2.9 feet.

*November 3, 2010*

**math**

She is not going to give you the answer. The answer is what you get when you do 35 divided by 12.

*November 3, 2010*

**3rd grader math homework**

Bethany has 40 apples. She gave 17 to her brother. How many does she have left? 40-17=23

*November 3, 2010*

**math**

Yes, good job!

*November 3, 2010*

**math**

favor of choosing a boy: # of boys/# of total students, reduce odds against choosing a boy: # of girls/# of total students, reduce Post if you want it checked.

*November 3, 2010*

**Reading**

Chapter 12 "I find a Real Live Man" Sam enjoyed taking baths in the spring he used the bark of a slippery elm for soap. Jessie C. James would help sam dig up mussel. Frightful was a expert in hunting so sam and him could eat rabbit stew, pheasant potpie, and sparrow...

*November 3, 2010*

**math**

The arithmetic post was already answered. Kim, please post a new question instead of "tagging" on the end of someone else's. 1/3 of a number can be written as 1/3x (or any other letter attached).

*November 3, 2010*

**math**

3a+8=15-(9a-9) 3a+8=15-9a+9 3a+8=24-9a 12a+8=24 12a=16 a=16/12 a=1 1/3

*November 3, 2010*

**Math**

.27 repeated..because 3/11 is less than 1, see that? There is no whole number in front of the fraction so it can't be 3.6.

*November 3, 2010*

**algebra**

16/2t=2 8t=2 t=2/8 t=1/4

*November 3, 2010*

**Spanish**

1. You would say "Si, estudio mucho" because it's asking do you study a lot and you would typically respond yes, i study a lot (as opposed to yes, i like to study a lot). Do the same thing for #2.

*November 3, 2010*

**algebra**

-13(4+2a)=208 Distribute -52-26a=208 Add 52 to both sides -26a=260 Divide both sides by -26 a=-10

*November 3, 2010*

**math**

100.0

*November 3, 2010*

**math**

Yes, but what you had should have been 147/1000=.147 Did you not see my post?

*November 2, 2010*

**5th grade**

Pat, I already told you. The first one should be 700,000.

*November 2, 2010*

**5th grade**

1. 189,103+504,200=693,303 Estimate would be 200,000+500,000=700,000. I'm assuming you have a typo and forgot the 0 for that option

*November 2, 2010*

**business math**

Debbie, we've told you to post your efforts if you want help.

*November 2, 2010*

**business math**

Debbie, we've told you to post your efforts if you want help.

*November 2, 2010*

**5 th grade**

Nice work, Pat! Good explanation, Amy!

*November 2, 2010*

**business math**

Debbie, we've told you to post your efforts if you want help.

*November 2, 2010*

**5th grade math**

No, 10*100=1000, not 10,000 so your decimal would be .147

*November 2, 2010*

**math 5th grade**

Jill, they can all be divided by 5.

*November 2, 2010*

**math**

You cannot simplify this.

*November 2, 2010*

**Math**

Do you understand, Bridgett? You just multiply that number through 1. Examples: 8!=8*7*6*5*4*3*2*1, 3!=3*2*1, 12!=12*11*10*9*8*7*6*5*4*3*2*1.

*November 2, 2010*

**math**

2L+2W=780 L=4W+15 2(4W+15)+2W=780 8W+50+2w=780 10W+50=780 10W=730 W=73, substitute this back into either original equation to find L, L=307

*November 2, 2010*

**Spanish**

1. soccer: el futbol 2. volleyball: el volibol Try some on your own.

*November 2, 2010*

**geometry**

*2, -3, *2, -3

*November 2, 2010*

**Math**

Yes, I believe so.

*November 1, 2010*

**Math**

1*8*8*8*8*8*1*8

*November 1, 2010*

**spanish 6th grade**

?Que es tu comida favorita?

*November 1, 2010*

**Math**

1/2 OF 3/4 of always means to multiply 1/2 * 3/4 = 3/8

*November 1, 2010*

**physics**

Use principles of force and kinematics to answer these: a. A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find the velocity at which each of them ends up...

*November 1, 2010*

**9th grade**

Or, if you want it in square root form, it's 8sqrt3

*November 1, 2010*

**word scramble**

Did you try using a word unscrambler website?

*November 1, 2010*

**Math**

y-15/32=2 6/7 Add 15/32 to both sides. y=15/32+2 6/7

*November 1, 2010*

**Physics**

Use principles of force and kinematics to answer these: a. A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find the velocity at which each of them ends up...

*November 1, 2010*

**8th grade**

What are your choices?

*November 1, 2010*

**English**

7 and 8 seem repetitive. You said you can help them take a bath in 7 and help them wash their bodies in 8. That's really the same thing.

*November 1, 2010*

**sports math**

Play around with the numbers until you get 20. How is this sports math?

*November 1, 2010*

**fraction**

Reduce first: 3/4 * 1/2 * 2/3 Write them side by side and cross simplify You can cross out the 3's and write 1's and you can cross out the 2's and write 1's Now you are left with 1*1*1/4*1*1=1/4

*November 1, 2010*

**10th grade**

Are they corresponding angles? If so, 2x-3=x+39. Are they supplementary angles? If so, 2x-3+x+39=180. Are they complementary angles? If so, 2x-3+x+39=90.

*October 31, 2010*

**spanish**

You don't conjugate it. You conjugate verbs, and tarea is a noun. It means homework.

*October 31, 2010*

**logic**

What do you think the main idea of this paragraph is? If you attempt to answer the questions with explanations, the tutors will be more willing to help you.

*October 31, 2010*

**general question**

No, you have to post them here.

*October 31, 2010*

**math**

No, 32 3/5 cannot be simplified.

*October 31, 2010*

**Chemistry**

No to all the above

*October 31, 2010*

**math**

L=7W 2L+2W=72 2(7W)+2W=72 14W+2W=72 16W=72 W=4.5, now substitute that back in either original equation to solve for L and L=31.5 Substitute in both original equations, both work.

*October 31, 2010*

**algebra**

2(2-x)<x-2 4-2x<x-2 4<3x-2 6<3x 2<x or x>2

*October 31, 2010*

**Maths- Discriminants**

The discriminant is b^2-4ac. For more information, check out this website; it's very helpful. h t t p : / / w w w . r e g e n t s p r e p . o r g / R e g e n t s / m a t h / a l g t r i g / A T E 3 / d i s c r i m i n a n t . h t m

*October 31, 2010*

**algebra**

3x=8y+5 3(23)=8y+5 69=8y+5 64=8y 8=y

*October 31, 2010*

**algebra**

2(x-3)-17=13-3(x+2) 2x-6-17=13-3x-6 2x-23=7-3x 2x=30-3x 5x=30 x=6

*October 31, 2010*

**Algebra 2**

I'll be honest, I don't know if you are right in the beginning. I can, however, tell you how to continue from 4x^2=100, if you are right up until that point. 4x^2=100 Divide both sides by 4. x^2=25 Take the square root of both sides. x=+-5

*October 31, 2010*

**math**

1/4x<10

*October 31, 2010*

**psychology**

I believe that it's A.

*October 31, 2010*

**psychology**

Yes, you are right.

*October 31, 2010*

**business matha**

35,204/52

*October 30, 2010*

**10th grade**

Does BC=CD? If so, 3x+2=5x-10 12=2x 12/2=x

*October 30, 2010*

**math**

2(x+1)-3x=3(3+2x) 2x+2-3x=9+6x -x+2=9+6x 2=9+7x -7=7x -1=x

*October 30, 2010*

**psychology**

It's one of the variables, but I'm not sure which.

*October 30, 2010*

**math**

The discriminant is b^2-4ac, or the part behind the square root in the quadratic formula. Try this website for more info. h t t p : / / w w w . r e g e n t s p r e p . o r g / R e g e n t s / m a t h / a l g t r i g / A T E 3/ d i s c r i m i n a n t . h t m Without the spaces...

*October 30, 2010*

**math**

Jake/Jim, please do not switch names. See the other post.

*October 30, 2010*

**math**

6.46 (so it would round to 6.5 for nearest tenth)

*October 30, 2010*

**Math**

157+x<=2200

*October 30, 2010*

**com156**

A fact is something that can be proven to be true. Examples: the sky is blue, 12*10=120, the capital of NJ is Trenton. We can check on any of these things if we do not know. An opinion is something that cannot be proven. Examples: blue is the best color, that shirt is nice. (...

*October 30, 2010*

**math**

It's still called bowling..if this is for a riddle, do your math problems.

*October 29, 2010*

**math**

1. 16/16=1 2. 16^3=16*16*16=4096 3. 100^0=1, 1^5=1 4. 25n^2 Not sure what you mean about writing these as powers of 2's, but here are the answers.

*October 29, 2010*

**scc**

One side of a triangle is half the longest side. The third side is 10 meters less than the longest side. The perimeter is 45 meters. Find all three sides

*October 29, 2010*

**Math**

False, it should be alternate interior angles are congruent.

*October 28, 2010*

**Math**

True.

*October 28, 2010*

**algebra**

17.5/2.5

*October 28, 2010*

**4th grade**

Identity. Anything times 1 is itself.

*October 28, 2010*

**spanish**

I think you want B. It's 1:00 in the afternoon. C is 1:00 at night, which doesn't make sense.

*October 28, 2010*

**math**

86/(43/5)

*October 28, 2010*

**math**

Sorry, I made an error. 7/1*8/17=56/17=3 5/17

*October 28, 2010*

**math**

2 1/8k=7 17/8k=7 Multiply both sides by 8/17. k=8

*October 28, 2010*

**math**

9/10*-7/5? -63/50=-1 13/50..just your sign was wrong.

*October 28, 2010*

**math**

-5/-7x+-1/5x=-3/5 5/7x-1/5x=-3/5 25/35x-7/35x=-21/35 18/35x=-21/35 Multiply each side by 35/18. x=-7/6 or -1 1/6

*October 28, 2010*

**math**

Please do not repost questions. Many tutors will choose to ignore your questions if you do this.

*October 28, 2010*

**math**

Yes, it is closed because if you multiply any of those numbers by any of those other numbers, you will always get one of the numbers in that set.

*October 27, 2010*

**6th grade**

1/3

*October 27, 2010*

**math/algebra**

No, we do not give the answers here. That will not help you learn this.

*October 27, 2010*

**math 4**

Never.

*October 27, 2010*

**Physics**

create a problem that could be represented/answered by the following equation. Include a sketch. Be sure to ask a question. 2kg * a = kg * 10N/kg * sin30 - 0.3 2kg * 10N/kg * cos30 so far I got that the object has a 20N downward force and a pull 30 degrees from the horizontal...

*October 27, 2010*

**math!!!!!!! help 3**

:)

*October 27, 2010*

**math!!!!!!! help 3**

Yes! Good job, Niki!

*October 27, 2010*