# Posts by Jen

Total # Posts: 3,512

**math**

But how do you know all the textbooks weigh the same amount? Poorly written question..

**algebra**

That's not right. Do 7.80/60

**Statistics**

A community of 100 homes constructed in 2009 contains 47 that used conventional construction. The reminder used Energy Star building standards. A real estate agent is going to show a client 5 homes. What is the probability that 3 were built using conventional methods?

**Math**

Right now the probability of picking blue would be 12/30. If you add another blue it would be 13/31, then 14/32, 15/33, 16/34, 17/35, 18/36. 18/36=1/2, so if he wants the probability to be 1/2 he needs to add 6 more blue.

**correction**

The ratio should be 3/24=8.2/x

**MTH 156**

5/6=153/x

**psychology**

The two types of stress are eustress and distress. One of these is negative and the other is positive. One of those is the one you want.

**Physics**

A 14000 N automobile travels at a speed of 50 km/h northward along a street, and a 7500 N sports car travels at a speed of 62 km/h eastward along an intersecting street. (a) If neither driver brakes and the cars collide at the intersection and lock bumpers, what will the ...

**Math- Algebra 1**

7.6y+12.8

**math**

Yes. (4*2)+3=11

**english**

What are winter dreams from the story "Winter Dreams" by F. Scott Fitzgerald? I don't understand what they are or what it means.

**math**

Another way to do it. 4=red 8=yellow 8=green rest=blue 4+8+8=20, 24-20=4

**error**

It should be 25, because 25 is the greatest number that can be divided by both of them.

**MAth**

I'm assuming you mean to the nearest hundredth, which would be .01

**Math**

Yup, 105-79, because you have to take the highest number and lowest number and subtract them.

**Chem 1010**

What will happen to 42 g of KCl solution per 100 g of water when cooled from 60 degrees Celsius to 0 degrees Celsius?

**3rd grade**

I'll do 8. 2 * 4 4 * 2 8 * 1 1 * 8

**poetry**

What's the paraphrasing of "If you can bear to hear the truth you've spoken Twisted by knaves to make a trap for fools, Or watch the things you gave your life to, broken, And stoop and build 'em up with worn-out tools"

**algebra2**

Rayniya, if you continue to post numerous questions without attempting any, your posts may be deleted.

**algebra2**

Are you sure that shouldn't say y=4?

**Spanish**

Yes, that's right. You can respond that you put your coat on before you go outside.

**foreign language(SPANISH)**

I think the third is vaso

**math**

Integers are positive AND negative whole numbers. Examples: -3, 15, etc.

**division**

I think Writeacher means MULTIPLY each number by 12.

**division**

(9360)/(1/12)=((9360)/1)*(12/1)=112320. Try the other one this way. Post it if you want it to be checked.

**algebra word problems**

.25q+.05n=10.75 (1) q+n=95 (2) Multiply (2) by -.25 to cancel the q's .25q+.05n=10.75 (1) -.25q-.25n=-23.75 (3) -.2n=-13 Divide both sides by -.2 n=65 From (2), q+n=95, q+65=95, q=30 When plugged back into equation 1, it checks. It works in both equations, so this is your ...

**geometry**

True, it only needs to have one side not corresponding for non-congruent triangles. It can have one, two, or all three sides not congruent.

**algebra**

No, it is not a true sentence because you do not have the answer. To make it a true sentence, follow Leanna's directions.

**ALgebra word problem**

2e+2.5c=178.50 c=30+e 2e+2.5(30+e)=178.5 2e+75+2.5e=178.5 4.5e+75=178.5 4.5e=103.5 e=23, c=30+e c=30+23 c=53 Check it by plugging them back into the first equation; it works.

**Spanish**

Agreed with anonymous.

**Spanish**

Sorry, I have to disagree with anonymous. Just check 36 and 37. 34. (typo?) should say "mis", not "mia", right? 36. No. They are asking how old are YOU. 37. I only have female cousins, ______________.

**Geometry**

Rectangle ABCD has diagonals AC and BD. E is the point of intersection of the two diagonals. If the area of triangle AEB is 8, what is the area of triangle ACD?

**English**

Yes, to wear your heart on your sleeves is to show true and real emotion.

**Spanish**

Just adding on to drwls's great answers. :) Post back when you've made corrections. 24. What did you (all) read? We all read __________.

**Spanish**

Anonymous is right. Try to correct them, and we will help you again.

**Math**

Your percentages don't add up to 100%. Please check your data and post any corrections.

**ALgebra**

(x+2)(x-2)(x^2+4) x^2-4(x^2+4) x^4-16

**Spanish**

1. Correct 2. I think it's B, because LA comida is feminine and doesn't match malo. This is the only one I'm not positive on. 3. A. I'm very sick. I'm not GOING to go to school. 4. Correct 5. Correct 6. Correct (Is English class easy? Of course!)

**Math Decimals**

Just add zeroes after the decimal so that they all have the same amount of digits. That's the easiest way to do it. 0.025, 0.026, 0.240, 0.250

**Math**

First one: (2,5) 2*2+1=5? Yes. Do the rest this way.

**5th grade (thomas)**

6-m=2 3/10 -m=2 3/10-6 -m=-4 3/10 m=4 3/10

**Math**

18/24

**algebra**

x^2+8X+16 (X+4) (X+4) x=-4

**Algebra**

-3x-5y=61 (1) 7x-5y=-9 (2) Looking at the equations, we can multiply either of them by -1 to cancel the y's. Let's do that to the 2nd one. -3x-5y=61 -7x+5y=9 Then add the equations together. -10x=70 x=-7 Plug that back into either original equation to solve for y.

**algebra**

3.50x

**Math**

2/5x=6 That's the total bill. Heather paid 3/5 of that.

**Math**

24=2 * 2 * 2 * 3

**geometry**

Rose, Damon answered the one for you. Try these the same way. Put them in y=mx+b form (solve for y). Post your work if you want them checked or need further help.

**Math**

5 7/8 * 4

**4th grade**

It's not a number sentence because it doesn't have the answer. Ms. Sue wrote the full number sentence out for you.

**MATH HELP ME 1st**

It's identity. That was one of your choices, you spelled it wrong.

**MATH HELP ME 1st**

What Daniel said, and then divide that by 4.

**4th grade**

You can diagram the array for 4 x 30 and 4 x 6 and then add them together.

**math**

Whole numbers mean don't use a fraction!

**9th grade algebra**

Answer for A: 2004-2005 Do B the same way.

**Geometry**

Thanks MathMate.

**Geometry**

Please imagine a triangle here. >.< the 'o' is a person and the two peaks are the mountains. /\___/\ _\___/ ___o Explain why the distance between these two peaks are greater than the difference of the distances from the person to each peak.

**Physics**

So it does not obey the law of inertia?

**Physics**

Does an object moving in a circle obey the law of inertia? Which way would it move if there were no net force on it?

**math correct or not?**

Yes for both. Good job.

**math**

x-350. Or -350.

**math**

Billy shops every how many days? You left out an important piece of information.

**Spanish**

Es la una y cuarto. Son las cinco menos cuartos. Son las siete y diez.

**math-algebra**

3x+2y=7 3x=-2y+7 x=-2/3y+7/3 2(-2/3y+7/3)-3y=-4 -4/3y+14/3-3y=-4 Combine like terms, solve for y, replace y in either original equation to solve for x. Post your work to get it checked.

**Algebra**

A much easier way to do this would be: 1) x+y=1300 2) x+2z=1400 3) x+y+z=1600 Look at 1 and 2. Since x+y=1300 and x+y+z=1600, z obviously equals 300. Now substitute that back in #2. x+2(300)=1400, x+600=1400, x=800. Now substitute x and z back in #3. x+y+z=1600, 800+y+300=1600...

**bus475**

What are your choices? Did you look up the word "oligopoly"?

**typos**

Please fix your post.

**algebra - college**

11x+8y=103 (1) 22x-7y=68 (2) Multiply (1) by -2 to cancel the x's -22-16y=-206 (3) 22x-7y=68 (2) Add them together. -23y=-138 Divide by -23 y=6 Now substitute y=6 into either equation (1) or (2) to solve for x. Post your work and answer if you'd like it checked.

**College Algebra**

Radical 10, please don't repost questions! I took the time to solve this for you when it was already done.

**College Algebra**

You just plug them in and see if both are true. If they are, it is a solution. -(6)-8(2)=-22 -7(6)+3(2)=-36

**College Algebra**

Try this one using the steps in the problem I did for you as a guide.

**error**

7-7/2x=-5 -7/2x=-12 Multiply both sides by -2/7 x=3 3/7

**math**

-10-(-10) Two negatives become a positive so -10+10= ?

**correction**

9t=27t-9 9t-27t=-9 -18y=-9 y=1/2

**Physics**

0.21

**math**

What?

**math50**

Yes, because they can both be divided by 5. Divide the numerator by 5 and that's your new numerator. Divide the denominator by 5 and that's your new denominator.

**Math, Please help :/**

You typed something wrong. Please fix your third sentences.

**Math**

x+y=3742 x=y-44 y-44+y=3742 2y-44=3742 2y=3786 y=1893 Now plug that back into either of the first two equations to solve for x.

**math**

Bob Pursley told you how to find it. Re-read his response.

**math**

41/84=.488

**Spanish 1**

54. When do you go/are you going to the shopping center? A. February 6 B. The two C. Thursday D. The fourth (plural) 56. Correct. It says "I would like to play tennis after classes today." 57. Correct. Tomorrow I'll go to the park. Parque is masculine so el would...

**Math**

85

**algebra**

4p+3q=36 (1) 9p+6q=78 (2) You want to eliminate either the p's or q's to solve for one. Eliminating the q's is easier because you only have to change one equation. Multiplying (1) by -2... -8p-6q=-72 (3) 9p+6q=78 (2) Add the equations together. p=6 Now substitute p...

**algebra**

30 and 66

**4th grade**

Sixty seven thousand

**mat 116**

-8x-27=-32 1/3 Add 27 to both sides. Divide by -8.

**2nd grade**

Seventy four.

**Math**

Good job!

**Math**

The hypotenuse is always the longest side and across from the right angle. So which letter does that match up with?

**Math**

No, the directions said to round to the nearest tenth. 6.122 rounded to the nearest tenth is 6.1.

**Spanish 1**

5 is right. (Still not sure about 9. Stuck between C and D.)

**math**

None of them are equal to -1. Please check your signs and post again. All of the answers will be positive.

**Spanish 1**

Try again on these: 1. It's asking what Juan is like. 5. Look up how you say Si, me gusta and no me gusta in a sentence. 8 is correct. I think 9 is also correct but I'm not 100% positive on that one.

**math**

3z=13 z=13/3 or 4 1/3 8x-y+(13/3)=22 8x-y=17 2/3 Should the last equation say 2x or 2z? I can't go any further until I know that.

**english**

You already asked this question. Have you read the book? I already know the answer from just reading the wikipedia page about it.

**Math**

Putting this information into the exponential growth formula gets you the equation y=100(2^x) where x equals the number of hours. Plugging in 12 for x, you get 409600.

**englis**

Obesity?

**math**

Distributive, maybe?