Friday

September 30, 2016
Number of results: 122,688

**Math**

I'm doing proportions, and I'm kinda confused with this one problem.. x/3=1/5. the way I do proportions is by cross multiplying, so I get 3=5x? I don't know what my answer would be?

*October 15, 2010 by anthony*

**stats**

scores on a University exam are normally distributed with a mean of 68 and a standard deviation of 9. use the 68-95-99.7 rule to answer the following questions 1) what proportions of students score between a 59 to 77? 2) what proportions of students score between a 50 to 86? 3...

*September 5, 2016 by kayla*

**Math--Proportions**

Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck

*April 5, 2011 by Lily*

**8th grade Algebra I (junior level math)**

Hello, I am currently in Unit 4-1 (Ratio, and Proportions) and I don't understand how pairs of ratios could form proportions. Could someone give me step by step instructions? Thank You

*December 1, 2009 by Jay*

**math156-proportions**

I can solve the proportions by any method. can anyone help me understand this. #1 4/15 = x/5 #2 x/3 = x+10/6

*September 14, 2009 by Christy*

**AP Statistics **

12) Which of the following statements is true? a) The sampling distribution of the difference between two proportions will always be normal. b) When comparing two population proportions, either sample proportion can be used as the unbiased estimate of the true population ...

*March 14, 2013 by Joker*

**statistics**

For three independent samples, each with n= 100, the respective sample proportions are 0.30, 0.35, and 0.25. Use the 0.05 level in testing whether the three population proportions could be the same.

*August 12, 2009 by Laura*

**stats**

The purpose of using stratified random sampling is to guarantee that the ______________. a. proportions within the samples represent the proportions in the population. b. sampling variability is increased c. sample groups are highly varied for more precise outcomes d. sampling...

*July 28, 2016 by m*

**Chemistry**

What data led to the development of the Law of Multiple Proportions? Give an example and explain why this law is important in chemistry. Would this be a good answer: John Dalton used the same observations he used for his law of definite proportions to help develop the law of ...

*June 28, 2015 by Jack*

**Chemistry**

For this problem would I have to use proportions? Analysis of a metal chloride XCI3 shows that it contains 67.2 % CI by mass. Calculate the molar mass of X and identify the element. I tried using proportions: X+CI3/CI3 = ?/67.2 but then I had to find for both X and ?. The ...

*August 27, 2010 by Amy~*

**chemistry**

which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite proportions. C. Dalton and...

*September 7, 2014 by Kaoru*

**chemistry**

which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite proportions. C. Dalton and...

*September 7, 2014 by Emiko*

**math**

Solve the proportions, 4 : 5::8 :b

*November 1, 2011 by rashawn*

**math**

Solving the proportions b : 16::6 : 4

*November 1, 2011 by rashawn*

**math**

proportions 4/21=x/168

*May 3, 2012 by Taylor*

**Math (Proportions)**

1a. x/20=52,5/75= 14 1b. 13/16=x/100= 81.25 1c. 18/25=1/x= 1.38 1d. 25/18=1/x= .72

*October 18, 2013 by Jerald*

**math proportions**

What is 1000/x = 25/64

*September 8, 2014 by brittney*

**math**

Show that the given proportions are equivalent. a+c / b+d = a-c / d-b and a / b = c / d

*January 28, 2008 by Anna-Marie*

**math**

algebra properties and proportions (x+3) 5 ----- = --- x =9/2 6 4 How do you get to this answer?

*August 7, 2008 by froggie*

**Statistics **

You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 college ...

*May 1, 2014 by debbie*

**Stats**

Which of the following statement is true? In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same value of alpha. A 95% ...

*November 18, 2013 by Jenn*

**Math**

Describe an application for the use of ratios or proportions

*February 28, 2008 by Allison*

**Math**

Describe an application for the use of ratios or proportions

*February 29, 2008 by Sherri*

**math**

algebra properties and proportions (x+1) 1 ----- = --- (x+2) 3 How do you come to this answer?

*August 7, 2008 by froggie*

**Math**

Describe an application for the use of ratios or proportions

*November 22, 2008 by Greg*

**Statistics **

You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 college ...

*May 1, 2014 by debbie*

**statistical applications**

In the media, numerous surveys are often displayed reporting percentages or proportions. A margin of error is often reported in the survey and this is used to calculate confidence intervals. Why is it important to create/report confidence intervals (CI) rather than just ...

*May 28, 2010 by cortez*

**math proportions**

17/32 = x/100 1700 = 32x x= 53 1/8 Am I right? yep

*February 25, 2007 by Walter*

**math**

application of Proportions-tic-tac-toe boards ?

*November 19, 2013 by Imari*

**Statistics**

Help Me Please! In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the ...

*October 29, 2013 by Casey *

**statistics **

Which of the following statements are true? (A) In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same value of alpha...

*March 27, 2015 by Anonymous*

**Math**

Is this statement true or false? The following proportions will yield the same results: x/2=4/9 and 9/2=4/x

*March 17, 2011 by Keenan white*

**math**

Soory I made a mistake on the last one I meant algebra properties and proportions (x+1) 2 ----- = --- x = 1 (x+2) 3 How do you come to this answer?

*August 7, 2008 by froggie*

**Math**

Create 4 proportions that will work for the following scenario: If the scale is 3.5 in = 8 ft and the drawing measures 6 in, what is the actual distance?

*November 19, 2012 by ariana*

**math**

I go to Conexus and I am super duper behind do you happen to have the answers for the proportions quiz???????? PLEASE A c d c b a d

*December 11, 2014 by lovlypandas*

**Statistics**

Find the sample proportions and test statistic for equal proportions. Is the decision close? Find the p-value. a. Dissatisfied workers in two companies: x1 = 40, n1 = 100, x2 = 30, n2 = 100, á = .05, two tailed test. b. Rooms rented at least a week in advance at two hotels: x1...

*October 3, 2008 by Marilyn*

**geometry**

in a right triangle ABC, if ab is 14 and bc is 12 wut is bd? there is a pic of a large trangle abc and in it is a line drawn down angle c making it line cd. angle acd then becomes a right trangle as well. i tried working = proportions and pyth thm but i dont seem to be getting...

*July 15, 2007 by yacoub*

**Math - Proportions**

This seems like an easy question but I can not seem to find the answer in my reading material. Can anyone possibly help?

*November 15, 2009 by Beverly*

**6th Grade Math: Proportions**

14/38=X/29. I'm still confused about figuring out what x is and getting X on its own. Please Help!!!

*August 8, 2012 by Hollywood*

**TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS**

imageshack(.)(us)/photo/my-images/834/j6wv.jpg/ imageshack(.)(us)/photo/my-images/17/6n4x.jpg/ please PLEASE IM BEGGING YOU MY TEACHER WILL BE GIVING ME 79 IF I DIDNT GET THIS .. OR ELSE LOWER THAN THAT. PLEASE TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS - BARBIE LEE, ...

*November 20, 2013 by barbie lee *

**Math**

I have two math problems I need help with- Percent proportions 1. 62% of 146 is what number? 2. 18.4% of 880 is what number?

*March 2, 2014 by Anonymous *

**Math**

How have proportions been useful to solve various math problems that we have studied?

*October 7, 2008 by Nabila Rahman*

**math Statistics**

Suppose that 33 out of 300 selected american drivers read the newspaper while driving. what percent of sample proportions are greater than this?

*February 18, 2013 by jessica *

**Math**

Help me- Proportions A store has T-shirts on slae at 2 for $5.50. At this rate, what do five T-shirts cost?

*February 28, 2008 by Sherri*

**6th grade math**

I need help explaining ratios and proportions to my 6th grader

*January 28, 2013 by An*

**math**

how do u solve a unit rate problem using proportions to solve

*January 26, 2012 by Ch*

**proportions**

3/8 x __ = __ 3 5/12

*November 30, 2008 by elizabeth*

**math**

im doing percent proportions and it is asking: 57% if 109 is what number? And i already know that you start with 57/100 = x/109 but how do you get the answer, i cant figure it out!!!

*October 2, 2007 by mariana*

**Math 8 - HELP!!!!!**

Ratio, Proportions, and Similarity Similar Figures A room is 36 ft long and 18 ft wide. What is the length to width ratio?

*February 27, 2013 by Laruen*

**Math (Proportions)**

Simplify each expression if possible by combining like terms. If not possible, write simplified 2x+9x I don't understand what to do

*November 21, 2013 by Jerald*

**Math**

How is using a conversion factor different than using proportions to convert measurement units? Explain which is easier and why.

*January 14, 2016 by Ali*

**8th grade Algebra I (junior level math)**

How do i solve proportions? step by step answers plz!!!! EXAMPLE! g/5 = 6/10

*December 1, 2009 by Nick*

**math**

one more I really do not understand this one Describe an application for the use of ratios or proportions that is or could be useful in your daily life.

*December 3, 2008 by meshelle*

**Proportions**

b = 6 --- --- 15 10 how do I solve this problems

*October 31, 2007 by Sandra*

**Math-Proportions**

My math question says- 1 1/2:9 = x:18 Now I gotta figure out the missing number [x]...I have 3 guesses on what answer the missing number [x] is! Either- A)2 1/2 B)3/4 or C)3 Which one is it? 1 1/2:9 = x:18 1 1/2/9 = x/18 x = 1 1/2*18/9 x = 3 hi i like garry unfortunately its ...

*February 28, 2007 by °•Oo.Darian.oO•°*

**Math**

OK, I have had trouble with math, 'C' average, and we are learning proportions. I don't get them! Can someone please do a proportion and then tell the steps to do it? Ex. 4/6= 8/X. Steps: 4/6 equals 8 over x. You do _______ do get ________ over , so X=12. [I know this is rong...

*February 26, 2009 by Jayla*

**math**

As the sample size n increases, the standard error of the proportions will __________. a)be equal to one b)become larger c)become smaller d)remain the same IS IT B)?

*July 21, 2010 by thara*

**statistics **

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following...

*October 9, 2014 by ANAHI*

**statistics**

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following...

*October 9, 2014 by ANAHI*

**Proportions**

What is the solution to the proportion 3y-8/12=y/5? can someone help me do this?

*January 17, 2013 by Corie*

**Algebra **

What is the mean and extremes of proportions?

*October 13, 2014 by Elizabeth*

**economics 2**

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following...

*October 8, 2014 by ANAHI*

**Statistics **

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following...

*October 9, 2014 by Vanessa*

**math**

lydia wrote 4_1/2 pages of her science report in one hour. what was her writing rate in pages per minute? (2-4 rates ratios and proportions)

*October 21, 2010 by Max*

**statistics**

I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a ...

*October 9, 2014 by ANGELA*

**statistics**

I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a ...

*October 10, 2014 by ANGGY*

**Geometry**

Can someone tell me how to solve these proportions? Thank you 5 7 ---- ----- = x - 1 x

*April 13, 2008 by Lauren*

**statistics; emergency please help me**

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following...

*October 8, 2014 by ANAHI*

**proportions**

make 3/5 u=in to a percent then round it to nearest tenth

*April 28, 2011 by zakaria *

**math**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321

*June 25, 2013 by Glenn D*

**Math**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321

*June 26, 2013 by Tracy *

**math**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 .

*June 27, 2013 by Tracy *

**math**

A persons height is 161 and the persons shadow is 280, and a objects height is 345. Solve by using proportions

*October 16, 2013 by Jada *

**math**

Person's height is 163 and the person's shadow is 290. The objects shadow is 345. Solve by using proportions

*October 16, 2013 by Jada *

**math**

Persons height is 165 and the persons shadow is 285. The objects shadow is 345. Solve by using proportions

*October 16, 2013 by Jada *

**geometry**

How are proportions solved when brought out in word problems?

*November 18, 2008 by brooke*

**stats**

How would r change if researchers had recordered the proportions?

*February 6, 2009 by kate*

**Genetics**

Can you help me determine the phenotype and proportions expected from these crosses in chickens? a) RR Pp x rr Pp b) rr PP x Rr Pp c) Rr Pp x Rr pp

*September 9, 2011 by Tommy*

**algebra**

use each number once to form three proportions. 1,2,10,4,12,20 15,5,16,6,8,3

*April 25, 2015 by emmalee*

**Math**

is this the correct answer? I might post more on this exact post, so please bare with me? These are proportions 1.) 2:5 = 4:y Answer: y=2

*September 6, 2011 by Bryce*

**Math**

In right triangle ABC, altitude CD is drawn to hypotenuse AB. If AD equals 4 and AC exceeds DB by 1, find DB. It is from a worksheet about proportions in a right triangle.

*February 21, 2010 by Emily*

**math**

A double recipe of cookies calls for 5 cups of flour. Which of the following proportions could be used to find the amount of flour for a triple recipe? 5/2= f/3 2/5=f/3 2/3 = f/5 3/2=5/f

*May 19, 2011 by Daniel*

**math**

Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on your budget. I am lost please help

*March 20, 2012 by Cindy *

**consumer math**

Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on your budget. I am lost please help

*March 19, 2012 by Cindy *

**math**

Use proportions to solve this problem: Lisa ran 3 miles in 21 minutes. At that rate, how long would it take Lisa to run 5 miles?

*August 21, 2013 by Janey*

**algebra 1**

I am working on cross products of proportions. one question is 5/7 = 3w/21 Can someone help?

*April 7, 2008 by BBnewgo*

** Business Statistics**

1- When the necessary conditions are met, a two-tail test is being conducted to test the difference between two population proportions. The two sample proportions are p1= 0.25 and p2 = 0.20 , and the standard error of the sampling distribution of p1 − p2 is 0.04. The ...

*August 11, 2009 by Lesliam*

**Math**

How would proportions be used to "scale up" or "scale down" something? (Not really sure if I even understand what this means. I even read my text and I can't figure this out.)

*November 15, 2009 by Marcus*

**Math**

Joan has two similar rectangular shaped pieces. One has with 4 inches in length 6 inches and the other has a width of 4 inches period what is the area of the larger rectangle piece. use proportions

*November 12, 2015 by Emily*

**math algebra solve proportions**

i need help on g over 32 = 8 over 64 solve each proportion

*December 5, 2012 by YOLANDA MATEOS*

**Geometry**

Find the value of the variable x in the following proportions 6/x = 9/8 x=48/9=5.333333... 5/5 = 4/x x=4 1/2 = 2/x x=4 x/10 = 10/8 x=12.5 Are my answers correct?

*April 24, 2009 by Anonymous*

**chemistry**

What is composed of atoms in fixed proportions? A. mixtures B. compounds C. electrons D. elements

*September 14, 2010 by junior*

**proportions**

In Spanish class, the girl to boy ratio is 6 to 4. If there are a total of 20 students, how many boys are there?

*March 13, 2012 by punk480*

**science **

What happened to the proportions of the two phenotypes as the F1 generation grew from 10 to 100 offspring? Why?

*March 14, 2014 by biology123*

**algebra**

Which of the following proportions will allow you to correctly compute the answer to the question: 51 in = ___ft. ? 1. 51/x = 1/12 2. x/51 = 12/1 3. 51/12 = 1/x 4. 51/x = 12/1

*December 17, 2015 by Sarah J*

**Math (please please please help!)**

Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck

*April 5, 2011 by Rosie*

**Geometry**

Find the values of the variable x in the following proportions 5/3 / 4/3 = x / 20/9 x= 25/9 =2.77777.... 5/4 = x/3 x= 15/4 = 3.75 20/36 / 21/x x= 189/5 = 37.8 Are my answers correct?

*April 24, 2009 by Anonymous*

**chemistry**

Do the relative proportions of elements ina agiven compound vary from sample? pls help

*September 23, 2011 by ted*

**chemistry**

Do the relative proportions of elements ina agiven compound vary from sample? pls help

*September 23, 2011 by ted*

**math**

Girls who played video games and got into fights = 36 Girls who played video games and did NOT get into fights = 55 Girls who Never played video games and got into fights = 578. Girls who Never played video games and did NOT get into fights = 1436 Is there evidence that the ...

*April 17, 2013 by Desperately needs help*