Saturday

March 28, 2015

March 28, 2015

Total # Posts: 3,309

**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?
*November 28, 2010*

**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.
*November 27, 2010*

**correction**

The ratio should be 3/24=8.2/x
*November 26, 2010*

**MTH 156**

5/6=153/x
*November 26, 2010*

**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.
*November 25, 2010*

**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 ...
*November 24, 2010*

**Math- Algebra 1 **

7.6y+12.8
*November 23, 2010*

**math**

Yes. (4*2)+3=11
*November 23, 2010*

**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.
*November 23, 2010*

**math**

Another way to do it. 4=red 8=yellow 8=green rest=blue 4+8+8=20, 24-20=4
*November 23, 2010*

**error**

It should be 25, because 25 is the greatest number that can be divided by both of them.
*November 22, 2010*

**MAth**

I'm assuming you mean to the nearest hundredth, which would be .01
*November 22, 2010*

**Math**

Yup, 105-79, because you have to take the highest number and lowest number and subtract them.
*November 21, 2010*

**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?
*November 21, 2010*

**3rd grade**

I'll do 8. 2 * 4 4 * 2 8 * 1 1 * 8
*November 21, 2010*

**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"
*November 21, 2010*

**algebra2**

Rayniya, if you continue to post numerous questions without attempting any, your posts may be deleted.
*November 21, 2010*

**alegbra2**

Are you sure that shouldn't say y=4?
*November 21, 2010*

**Spanish **

Yes, that's right. You can respond that you put your coat on before you go outside.
*November 21, 2010*

**foreign language(SPANISH)**

I think the third is vaso
*November 21, 2010*

**math**

Integers are positive AND negative whole numbers. Examples: -3, 15, etc.
*November 21, 2010*

**division**

I think Writeacher means MULTIPLY each number by 12.
*November 21, 2010*

**division**

(9360)/(1/12)=((9360)/1)*(12/1)=112320. Try the other one this way. Post it if you want it to be checked.
*November 21, 2010*

**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 ...
*November 21, 2010*

**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.
*November 21, 2010*

**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.
*November 21, 2010*

**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.
*November 20, 2010*

**Spanish**

Agreed with anonymous.
*November 20, 2010*

**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, ______________.
*November 20, 2010*

**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?
*November 19, 2010*

**English**

Yes, to wear your heart on your sleeves is to show true and real emotion.
*November 19, 2010*

**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 __________.
*November 19, 2010*

**Spanish**

Anonymous is right. Try to correct them, and we will help you again.
*November 18, 2010*

**Math**

Your percentages don't add up to 100%. Please check your data and post any corrections.
*November 18, 2010*

**ALgebra**

(x+2)(x-2)(x^2+4) x^2-4(x^2+4) x^4-16
*November 18, 2010*

**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!)
*November 18, 2010*

**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
*November 18, 2010*

**Math**

First one: (2,5) 2*2+1=5? Yes. Do the rest this way.
*November 18, 2010*

**5th grade (thomas)**

6-m=2 3/10 -m=2 3/10-6 -m=-4 3/10 m=4 3/10
*November 17, 2010*

**Math**

18/24
*November 17, 2010*

**algebra**

x^2+8X+16 (X+4) (X+4) x=-4
*November 17, 2010*

**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.
*November 17, 2010*

**algebra**

3.50x
*November 17, 2010*

**Math**

2/5x=6 That's the total bill. Heather paid 3/5 of that.
*November 17, 2010*

**Math**

24=2 * 2 * 2 * 3
*November 17, 2010*

**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.
*November 16, 2010*

**Math**

5 7/8 * 4
*November 16, 2010*

**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.
*November 16, 2010*

**MATH HELP ME 1st**

It's identity. That was one of your choices, you spelled it wrong.
*November 16, 2010*

**MATH HELP ME 1st**

What Daniel said, and then divide that by 4.
*November 15, 2010*

**4th grade**

You can diagram the array for 4 x 30 and 4 x 6 and then add them together.
*November 15, 2010*

**math**

Whole numbers mean don't use a fraction!
*November 15, 2010*

**9th grade algebra**

Answer for A: 2004-2005 Do B the same way.
*November 15, 2010*

**Geometry**

Thanks MathMate.
*November 15, 2010*

**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.
*November 15, 2010*

**Physics**

So it does not obey the law of inertia?
*November 14, 2010*

**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?
*November 14, 2010*

**math correct or not?**

Yes for both. Good job.
*November 14, 2010*

**math**

x-350. Or -350.
*November 14, 2010*

**math**

Billy shops every how many days? You left out an important piece of information.
*November 14, 2010*

**Spanish**

Es la una y cuarto. Son las cinco menos cuartos. Son las siete y diez.
*November 14, 2010*

**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.
*November 14, 2010*

**Language Arts**

No
*November 14, 2010*

**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...
*November 13, 2010*

**bus475**

What are your choices? Did you look up the word "oligopoly"?
*November 13, 2010*

**typos**

Please fix your post.
*November 13, 2010*

**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.
*November 13, 2010*

**College Algebra**

Radical 10, please don't repost questions! I took the time to solve this for you when it was already done.
*November 13, 2010*

**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
*November 13, 2010*

**College Algebra**

Try this one using the steps in the problem I did for you as a guide.
*November 13, 2010*

**error**

7-7/2x=-5 -7/2x=-12 Multiply both sides by -2/7 x=3 3/7
*November 13, 2010*

**math**

-10-(-10) Two negatives become a positive so -10+10= ?
*November 13, 2010*

**correction**

9t=27t-9 9t-27t=-9 -18y=-9 y=1/2
*November 12, 2010*

**Physics **

0.21
*November 12, 2010*

**math**

What?
*November 12, 2010*

**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.
*November 12, 2010*

**Math, Please help :/**

You typed something wrong. Please fix your third sentences.
*November 11, 2010*

**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.
*November 10, 2010*

**math**

Bob Pursley told you how to find it. Re-read his response.
*November 10, 2010*

**math**

41/84=.488
*November 10, 2010*

**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...
*November 10, 2010*

**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...
*November 10, 2010*

**algebra**

30 and 66
*November 10, 2010*

**4th grade**

Sixty seven thousand
*November 10, 2010*

**mat 116**

-8x-27=-32 1/3 Add 27 to both sides. Divide by -8.
*November 8, 2010*

**2nd grade**

Seventy four.
*November 8, 2010*

**Math**

Good job!
*November 7, 2010*

**Math**

The hypotenuse is always the longest side and across from the right angle. So which letter does that match up with?
*November 7, 2010*

**Math**

No, the directions said to round to the nearest tenth. 6.122 rounded to the nearest tenth is 6.1.
*November 7, 2010*

**Spanish 1**

5 is right. (Still not sure about 9. Stuck between C and D.)
*November 7, 2010*

**math**

None of them are equal to -1. Please check your signs and post again. All of the answers will be positive.
*November 7, 2010*

**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.
*November 7, 2010*

**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.
*November 7, 2010*

**english**

You already asked this question. Have you read the book? I already know the answer from just reading the wikipedia page about it.
*November 7, 2010*

**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.
*November 7, 2010*

**englis**

Obesity?
*November 6, 2010*

**math **

Distributive, maybe?
*November 6, 2010*

**math**

The 67% is right, but not 375. Move the decimal over 2 places to the right, not 3. Try again.
*November 6, 2010*

**math**

No, move the decimal 2 places to the right.
*November 6, 2010*

Pages: <<Prev | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | **13** | 14 | 15 | 16 | 17 | 18 | 19 | Next>>